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81761-04 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

81761-04: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1095 OVERALL, first_end_style: SQUARE, pin_overall_length: 0.875 INCHES NOMINAL IN, pin_overall_diameter: 0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN, material_document_and_classification: AMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-276-6750, 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
81761-04
NSN: 5315-00-276-6750
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 1095 OVERALL
first_end_styleSQUARE
pin_overall_length0.875 INCHES NOMINAL IN
pin_overall_diameter0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN
material_document_and_classificationAMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-276-6750
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 81761-04 · 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
•
FIRST END STYLE: SQUARE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.875 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL COMP 1095 OVERALL
TECHNICAL CHARACTERISTICS
FIRST END STYLESQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5132 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.875 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 1095 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
AN150264Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
37Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 81761-04?
81761-04 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 81761-04?
There are 2 known substitutes for 81761-04: AN150264, 37. Substitute compatibility should be verified for your specific system.
What is the NSN for 81761-04?
81761-04 is cataloged in the U.S. Government catalog under NSN 5315-00-276-6750. 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.