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1171057 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1171057: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN, outside_diameter: 0.293 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.040 INCHES MINIMUM IN, end_item_identification: 01-652-5218. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-671-8554, 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
1171057
NSN: 5310-01-671-8554
FSC: 5310 — Nuts and Washers
CAGE: 3SPK0 — FASTENAL COMPANY DIV OSHK (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
outside_diameter0.293 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.040 INCHES MINIMUM IN
end_item_identification01-652-5218
NSN5310-01-671-8554
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1171057 · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.293 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.040 INCHES MINIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
HOLE DIAMETER: 0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.293 INCHES NOMINAL IN
MATERIAL THICKNESS0.040 INCHES MINIMUM IN
END ITEM IDENTIFICATION01-652-5218
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.167 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 1171057?
1171057 is a WASHER,LOCK.
What is the NSN for 1171057?
1171057 is cataloged in the U.S. Government catalog under NSN 5310-01-671-8554. 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.