Head Assemblies

BO Head Assemblies

BO-U Underground Head Assemblies

ID #	PART #	DESCRIPTION		QTY
	SM 2504U		BO-U CORE BARREL HEAD ASSEMBLY
1	SM 02516		SPEARHEAD POINT	1
2	SM 02517		COMPRESSION SPRING	1
3	SM 02518		DETENT PLUNGER	1
4	SM 02519	BO	SPEARHEAD BASE	1
5	SM 02520		SPIROL PIN 7/16″ x 1-3/4″	1
6	SM 2542	BO-U	LATCH RETRACTING CASE	1
7	SM 2522		SPRING PIN 3/8″ X 1-3/4″	2
8	SM 1524		BOLT 3/8″ – 16UNC X 3/4″	1
9	SM 2523		WASHER	1
10	SM 2553	BO-U	COMPRESSION SPRING	1
11	SM 2546	BO-U	UPPER LATCH BODY	1
12	SM 2526	BO	LATCH	2
13	SM 2527	BO	LINK	2
14	SM 2528		SPRING PIN 3/8″ x 1-1/4″	1
15	SM 2543	BO/NO	VALVE PISTON	1
16	SM 2547		SPRING PIN 1/4” x 1-5/8”	1
17	SM 2552		LANDING INDICATOR BUSHING	1
18	SM 2548	BO-U	ADAPTER	1
19	SM 2549	BO-U	SEAL	2
20	SM 2550	BO-U	SEAL SEAT	1
21	SM 2531		LANDING SHOULDER	1
22	SM 2532		LOWER LATCH BODY	1
23	SM 2533		LOCKING NUT 7/8” UNC	1
24	SM 2534	PO	SPINDLE	1
25	SM 2535	BO	SHUT-OFF VALVE	2
26	SM 2536	BO	VALVE ADJUSTING WASHER	2
27	SM 2537		THRUST BEARING	2
28	SM 2538	BO	SPINDLE BUSHING	1
29	SM 2539	BO	COMPRESSION SPRING	1
30	SM 2540		LOCKING NUT 5/8” UNC	1
31	SM 2541	BO	INNER-TUBE CAP	1
32	SM 1549		GREASE FITTING	1
33	SM 2551		BALL 3/4”	1
34	SM 2544	BO	CHECK VALVE BODY	1

NO Head Assemblies

NO-U Underground Head Assemblies

ID #	PART #	DESCRIPTION		QTY
	SM 3504U		NO-U CORE BARREL HEAD ASSEMBLY
1	SM 2516		SPEARHEAD POINT	1
2	SM 2517		COMPRESSION SPRING	1
3	SM 2518		DETENT PLUNGER	1
4	SM 3516	NO	SPEARHEAD BASE	1
5	SM 2520		SPIROL PIN 7/16″ x 1-3/4″	1
6	SM 3539	NO-U	LATCH RETRACTING CASE	1
7	SM 3518		SPRING PIN 1/2″ x 2″	2
8	SM 1524		BOLT 3/8″ – 16UNC X 3/4″	1
9	SM 3519		WASHER	1
10	SM 3540	NO-U	COMPRESSION SPRING	1
11	SM 3541	NO-U	UPPER LATCH BODY	1
12	SM 3522		LATCH	2
13	SM 3542	NO/NO-U	LINK	2
14	SM 3524		SPIROL PIN 1/2″ x 1- 1/2″	1
15	SM 2543	BO/NO	VALVE PISTON	1
16	SM 3543		SPIROL PIN 1/4” x 2”	1
17	SM 2552		LANDING INDICATOR BUSHING	1
18	SM 3544	NO-U	ADAPTER	1
19	SM 3545	NO-U	SEAL	1
20	SM 3546	NO-U	SEAL SEAT	1
21	SM 3525	NO	LANDING SHOULDER	1
22	SM 3526	NO	LOWER LATCH BODY	1
23	SM 3528		HEX NUT 1-1/8”	1
24	SM 3529	NO	SPINDLE	1
25	SM 3530	NO	SHUT-OFF VALVE	2
26	SM 3531	NO	VALVE ADJUSTING WASHER	2
27	SM 3532	NO	THRUST BEARING	1
28	SM 3533	PO	SPINDLE BUSHING	1
29	SM 3534		HANGER BEARING	1
30	SM 3535	NO	COMPRESSION SPRING	1
31	SM 3536		LOCKING NUT 3/4” UNC	1
32	SM 3537	NO	INNER-TUBE CAP	1
33	SM 1549		GREASE FITTING	1
34	SM 2529		BALL 22mm	1
35	SM 3538		CHECK VALVE BODY	1

HO Head Assemblies

HO-U Underground Head Assemblies

D #	PART #	DESCRIPTION		QTY
	SM 4504U		HO-U CORE BARREL HEAD ASSEMBLY
1	SM 2516		SPEARHEAD POINT	1
2	SM 2517		COMPRESSION SPRING	1
3	SM 2518		DETENT PLUNGER	1
4	SM 4516	HO/PO	SPEARHEAD BASE	1
5	SM 2520		SPIROL PIN 7/16″ x 1-3/4″	1
6	SM 4537	HO-U	LATCH RETRACTING CASE	1
7	SM 4518		SPRING PIN 1/2″ x 2-3/4″	2
8	SM 4538	HO-U	COMPRESSION SPRING	1
9	SM 4519		WASHER	1
10	SM 1524		BOLT 3/8″ – 16UNC x 3/4″	1
11	SM 4539	HO-U	UPPER LATCH BODY	1
12	SM 4522	HO	LATCH	2
13	SM 4540	HO-U	LINK	2
14	SM 3518		SPRING PIN 1/2″ x 2″	1
15	SM 25301		VALVE PISTON	1
16	SM 4542		SPIROL PIN 1/4” x 2-3/4”	1
17	SM 2552		LANDING INDICATOR BUSHING	1
18	SM 4543	HO-U	ADAPTER	1
19	SM 4544	HO-U	SEAL	2
20	SM 4545	HO-U	SEAL SEAT	1
21	SM 4524	HO	LANDING SHOULDER	1
22	SM 4525		LOWER LATCH BODY	1
23	SM 4527		HEX NUT 1-1/4” UNC G8	1
24	SM 4528		SPINDLE	1
25	SM 4529	HO	SHUT-OFF VALVE	2
26	SM 4530	HO	VALVE ADJUSTING WASHER	2
27	SM 4531		THRUST BEARING	2
28	SM 4532		SPINDLE BUSHING	1
29	SM 3532		HANGER BEARING	1
30	SM 4533	HO	COMPRESSION SPRING	1
31	SM 4534		LOCKING NUT	1
32	SM 4535		INNER-TUBE CAP	1
33	SM 1549		GREASE FITTING	1
34	SM 2529		BALL 22mm	1
35	SM 3538		CHECK VALVE BODY	1

PO Head Assemblies

D #	PART #	DESCRIPTION		QTY
	SM 5504		PO CORE BARREL HEAD ASSEMBLY
1	SM 2516		SPEARHEAD POINT	1
2	SM 2517		COMPRESSION SPRING	1
3	SM 2518		DETENT PLUNGER	1
4	SM 4516	HO	SPEARHEAD BASE	1
5	SM 2520		SPIROL PIN 7/16″ x 1-3/4″	1
6	SM 4517	HO	LATCH RETRACTING CASE	1
7	SM 4518		SPRING PIN 1/2″ x 2-3/4″	2
8	SM 1524		BOLT 3/8″ – 16UNC x 3/4″	1
9	SM 4519	HO/PO	WASHER	1
10	SM 4520	HO/PO	COMPRESSION SPRING	1
11	SM 4521	HO/PO	UPPER LATCH BODY	1
12	SM 5516	PO	LATCH	2
13	SM 4523	HO/PO	LINK	2
14	SM 3518		SPRING PIN 1/2″ x 2″	1
15	SM 5517	PO	LANDING SHOULDER	1
16	SM 25301		VALVE PISTON	1
17	SM 25302		SPIROL PIN 1/4” x 2-3/4”	1
18	SM 25303		FLUID RETENTION BUSHING	1
19	SM 25304		FLUID RETENTION SPRING, LIGHT	1
20	SM 5530	PO	LOWER LATCH BODY	1
21	SM 5531		WASHER NORD-LOCK 1-1/2”	1
22	SM 5532		LOCKING NUT 1-1/2” UNC	1
23	SM 5533	PO	SPINDLE	2
24	SM 5521	PO	SHUT-OFF VALVE	1
25	SM 5522	PO	VALVE ADJUSTING WASHER	2
26	SM 5534	PO	SHUT-OFF VALVE WASHER	1
27	SM 4531		THRUST BEARING	3
28	SM 4532	HO/PO	SPINDLE BUSHING	1
29	SM 1549		GREASE FITTING	1
30	SM 5536		COMPRESSION SPRING	1
31	SM 5524		FLAT WASHER 1-1/4”	1
32	SM 5537		LOCKING NUT 1-1/4” UNC	1
33	SM 5527		CHECK VALVE BODY	1
34	SM 2529		BALL 22mm	1
35	SM 5528		SPIROL PIN 3/16” x 1-3/4”	1
36	SM 5526	PO	VALVE BUSHING	1
37	SM 5529	PO	PWL INNER-TUBE CAP	1