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1677-04-421-6135 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1677-04-421-6135: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL, material_document_and_classification: ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-437-3832, 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
1677-04-421-6135
NSN: 5315-01-437-3832
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
material_document_and_classificationASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-437-3832
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1677-04-421-6135 · 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
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
803-6397262-27Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1/2-13UNC-2AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
803-6397262 PC NO 27Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5315PL1283978Reference document
Same NSN cross-reference
Reference document — Informative reference only
8100-1251-0310 PC NO 27Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1677-04-421-6135?
1677-04-421-6135 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 1677-04-421-6135?
There are 5 known substitutes for 1677-04-421-6135: 803-6397262-27, 1/2-13UNC-2A, 803-6397262 PC NO 27 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1677-04-421-6135?
1677-04-421-6135 is cataloged in the U.S. Government catalog under NSN 5315-01-437-3832. 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.