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2057-1077 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2057-1077: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 4043 OVERALL, first_end_style: SQUARE, pin_overall_length: 0.281 INCHES NOMINAL IN, pin_overall_diameter: 0.0935 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN, material_document_and_classification: QQ-A-225/8 T6 FED SPEC 1ST MATERIAL RESPONSE OR MTL-E-16053 MIL SPEC 2ND MATERIAL RESPONSE OVERALL, second_end_relationship_with_first_end: IDENTICAL. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-191-0651, 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
2057-1077
NSN: 5315-01-191-0651
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 4043 OVERALL
first_end_styleSQUARE
pin_overall_length0.281 INCHES NOMINAL IN
pin_overall_diameter0.0935 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN
material_document_and_classificationQQ-A-225/8 T6 FED SPEC 1ST MATERIAL RESPONSE OR MTL-E-16053 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-01-191-0651
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2057-1077 · 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-A-225/8 T6 FED SPEC 1ST MATERIAL RESPONSE OR MTL-E-16053 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
PIN OVERALL DIAMETER: 0.0935 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.281 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 4043 OVERALL
TECHNICAL CHARACTERISTICS
FIRST END STYLESQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 T6 FED SPEC 1ST MATERIAL RESPONSE OR MTL-E-16053 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.0935 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.281 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALALUMINUM ALLOY 6061 OR ALUMINUM ALLOY 4043 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 2057-1077?
2057-1077 is a PIN,STRAIGHT,HEADLESS.
What is the NSN for 2057-1077?
2057-1077 is cataloged in the U.S. Government catalog under NSN 5315-01-191-0651. 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.