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A316215-3 — THREAD PIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A316215-3: THREAD PIECE,UNION.

The THREAD PIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, seat_type: STRAIGHT FACE, thread_size: 1/2-14, overall_length: 1.750 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_connection_type: THREADED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-554-9871, 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
A316215-3
NSN: 4730-00-554-9871
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
seat_typeSTRAIGHT FACE
thread_size1/2-14
overall_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
end_connection_typeTHREADED
screw_thread_locationEXTERNAL
union_end_thread_size1-3/4IN-12 IN
material_hardness_rating92.0 ROCKWELL B MINIMUM AND 98.0 ROCKWELL B MAXIMUM
union_end_thread_directionRIGHT-HAND
screw_thread_series_designatorNPSM
working_pressure_and_service_type4000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER LBS
NSN4730-00-554-9871
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A316215-3 · 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
•
UNION END THREAD DIRECTION: RIGHT-HAND
•
MATERIAL HARDNESS RATING: 92.0 ROCKWELL B MINIMUM AND 98.0 ROCKWELL B MAXIMUM
•
END CONNECTION TYPE: THREADED
•
UNION END THREAD SIZE: 1-3/4IN-12 IN
•
SEAT TYPE: STRAIGHT FACE
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 1/2-14
TECHNICAL CHARACTERISTICS
UNION END THREAD DIRECTIONRIGHT-HAND
MATERIAL HARDNESS RATING92.0 ROCKWELL B MINIMUM AND 98.0 ROCKWELL B MAXIMUM
END CONNECTION TYPETHREADED
UNION END THREAD SIZE1-3/4IN-12 IN
OVERALL LENGTH1.750 INCHES NOMINAL IN
SEAT TYPESTRAIGHT FACE
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE1/2-14
SCREW THREAD SERIES DESIGNATORNPSM
UNION END SCREW THREAD SERIES DESIGNATORUN
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is A316215-3?
A316215-3 is a THREAD PIECE,UNION.
What is the NSN for A316215-3?
A316215-3 is cataloged in the U.S. Government catalog under NSN 4730-00-554-9871. 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.