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6402201 ITEM 37 — 6402201 ITEM 37

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6402201 ITEM 37: 6402201 ITEM 37.

The 6402201 ITEM 37 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-457-1897, 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
6402201 ITEM 37
NSN: 5306-01-457-1897
FSC: 5306 — Bolts
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number6402201 ITEM 37
NSN5306-01-457-1897
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6402201 ITEM 37 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
THREAD LENGTH: 1.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286,CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN
FASTENER LENGTH1.250 INCHES NOMINAL IN
THREAD LENGTH1.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
SPECIAL FEATURESSELF-LOCKING
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 2
751-6402201 FIND 37Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
211076136Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 6402201 ITEM 37?
6402201 ITEM 37 is a 6402201 ITEM 37.
What parts can replace 6402201 ITEM 37?
There are 2 known substitutes for 6402201 ITEM 37: 751-6402201 FIND 37, 211076136. Substitute compatibility should be verified for your specific system.
What is the NSN for 6402201 ITEM 37?
6402201 ITEM 37 is cataloged in the U.S. Government catalog under NSN 5306-01-457-1897. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.