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373 1508 — NIPPLE,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

373 1508: NIPPLE,BOSS.

The NIPPLE,BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS ALL ENDS, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS, style_designator: CENTER WRENCHING FACILITY W/ THREADED RELIEF, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-262-2566, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
373 1508
NSN: 4730-01-262-2566
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81495 — KOEHRING CRANES, INC DBA TEREX CRANES DIV WAVERLY OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS ALL ENDS
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
style_designatorCENTER WRENCHING FACILITY W/ THREADED RELIEF
surface_treatmentCADMIUM OVERALL
nominal_thread_size1.312 INCHES ALL ENDS IN
nominal_overall_length2.130 INCHES IN
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUN ALL ENDS
furnished_items_and_quantity1 FLAT WASHER AND 1 LOCKNUT AND 2 PREFORMED PACKING
NSN4730-01-262-2566
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 373 1508 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FURNISHED ITEMS AND QUANTITY: 1 FLAT WASHER AND 1 LOCKNUT AND 2 PREFORMED PACKING
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.130 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: CENTER WRENCHING FACILITY W/ THREADED RELIEF
•
NOMINAL THREAD SIZE: 1.312 INCHES ALL ENDS IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
THREAD CLASS: 3A ALL ENDS A
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 FLAT WASHER AND 1 LOCKNUT AND 2 PREFORMED PACKING
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH2.130 INCHES IN
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATORCENTER WRENCHING FACILITY W/ THREADED RELIEF
NOMINAL THREAD SIZE1.312 INCHES ALL ENDS IN
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A ALL ENDS A
THREAD QUANTITY PER INCH12 ALL ENDS
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
0505-16-16SReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 373 1508?
373 1508 is a NIPPLE,BOSS.
What parts can replace 373 1508?
There is 1 known substitute for 373 1508: 0505-16-16S. Substitute compatibility should be verified for your specific system.
What is the NSN for 373 1508?
373 1508 is cataloged in the U.S. Government catalog under NSN 4730-01-262-2566. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.