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A316873-7 — THREAD PIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A316873-7: THREAD PIECE,UNION.

The THREAD PIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008, seat_type: STRAIGHT FACE, seat_material: STEEL, overall_length: 2.000 INCHES NOMINAL IN, end_connection_type: SWEAT SOLDER, union_end_thread_size: 3-11/16IN-12 IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-984-1653, 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
A316873-7
NSN: 4730-00-984-1653
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialSTEEL COMP 1008
seat_typeSTRAIGHT FACE
seat_materialSTEEL
overall_length2.000 INCHES NOMINAL IN
end_connection_typeSWEAT SOLDER
union_end_thread_size3-11/16IN-12 IN
union_end_thread_directionRIGHT-HAND
nominal_pipe_size_designation0.500 INCHES IN
union_end_screw_thread_series_designatorUN
NSN4730-00-984-1653
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A316873-7 · 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
•
NOMINAL PIPE SIZE DESIGNATION: 0.500 INCHES IN
•
END CONNECTION TYPE: SWEAT SOLDER
•
UNION END THREAD SIZE: 3-11/16IN-12 IN
•
SEAT TYPE: STRAIGHT FACE
•
SEAT MATERIAL: STEEL
•
UNION END SCREW THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS
UNION END THREAD DIRECTIONRIGHT-HAND
NOMINAL PIPE SIZE DESIGNATION0.500 INCHES IN
END CONNECTION TYPESWEAT SOLDER
UNION END THREAD SIZE3-11/16IN-12 IN
OVERALL LENGTH2.000 INCHES NOMINAL IN
SEAT TYPESTRAIGHT FACE
SEAT MATERIALSTEEL
UNION END SCREW THREAD SERIES DESIGNATORUN
MATERIALSTEEL COMP 1008
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 demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A316873-7?
A316873-7 is a THREAD PIECE,UNION.
What is the NSN for A316873-7?
A316873-7 is cataloged in the U.S. Government catalog under NSN 4730-00-984-1653. 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.