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7-57-210 — NUT,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7-57-210: NUT,UNION.

The NUT,UNION is a the manufacturer industrial component. Key specifications include material: RUBBER, end_item_identification: NSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK). This part is cataloged in the U.S.

Government catalog under NSN 4730-00-232-6805, 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
7-57-210
NSN: 4730-00-232-6805
NIINs: 002326805, 012412709
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER
end_item_identificationNSN 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK)
NSN4730-00-232-6805
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7-57-210 · 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
•
WIDTH ACROSS FLATS: 1.359 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
•
SHOULDER STEP WIDTH: 0.120 INCHES NOMINAL IN
•
SHOULDER WIDTH: 0.120 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD PITCH DIAMETERS: +1.1469 TO 1.1535 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.188 INCHES IN
•
NUT HEIGHT: 0.620 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.359 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
SHOULDER STEP WIDTH0.120 INCHES NOMINAL IN
SHOULDER WIDTH0.120 INCHES NOMINAL IN
THREAD SERIESUN
THREAD PITCH DIAMETERS+1.1469 TO 1.1535 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.188 INCHES IN
NUT HEIGHT0.620 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7-57-210?
7-57-210 is a NUT,UNION.
What is the NSN for 7-57-210?
7-57-210 is cataloged in the U.S. Government catalog under NSN 4730-00-232-6805. 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.