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1977-31 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1977-31: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, shear_strength: 36 SINGLE POUNDS PER SQUARE INCH, first_end_style: SQUARE, surface_treatment: CADMIUM AND CHROMATE OVERALL, pin_overall_length: 0.398 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN, material_document_and_classification: QQ-W-343 TY S FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-052-6436, 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
1977-31
NSN: 5315-00-052-6436
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 12116 — NAMMO DEFENSE SYSTEMS INC. DBA NAMMO DEFENSE SYSTEMS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
shear_strength36 SINGLE POUNDS PER SQUARE INCH
first_end_styleSQUARE
surface_treatmentCADMIUM AND CHROMATE OVERALL
pin_overall_length0.398 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN
material_document_and_classificationQQ-W-343 TY S FED SPEC SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-052-6436
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1977-31 · 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: QQ-W-343 TY S FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL LENGTH: 0.398 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
SHEAR STRENGTH: 36 SINGLE POUNDS PER SQUARE INCH
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
FIRST END STYLESQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-343 TY S FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL LENGTH0.398 INCHES MINIMUM AND 0.418 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SHEAR STRENGTH36 SINGLE POUNDS PER SQUARE INCH
MATERIALCOPPER ALLOY OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1977-31?
1977-31 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for 1977-31?
1977-31 is cataloged in the U.S. Government catalog under NSN 5315-00-052-6436. This indicates validated use in U.S. government and defense supply chains.
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