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NT7637 — NUT,INLET NIPPLE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NT7637: NUT,INLET NIPPLE.

The NUT,INLET NIPPLE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-362-0346, 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
NT7637
NSN: 5310-00-362-0346
FSC: 5310 — Nuts and Washers
CAGE: 01843 — AMBAC INTERNATIONAL CORPORATION DIV AMBAC INTERNATIONAL (USA)
SPECIFICATIONS
Part NumberNT7637
NSN5310-00-362-0346
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NT7637 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 9
BB57S61-0331PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
FSN13PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB58S61-0811PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
NT7824Reference document
Same NSN cross-reference
Reference document — Secondary reference
AM82S61-01148PC16Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
82226S61-134PC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NT7637?
NT7637 is a NUT,INLET NIPPLE.
What parts can replace NT7637?
There are 9 known substitutes for NT7637: BB57S61-0331PC16, FSN13PC16, BB58S61-0811PC16 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NT7637?
NT7637 is cataloged in the U.S. Government catalog under NSN 5310-00-362-0346. 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.