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ASAB271 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

ASAB271: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM, outside_diameter: 0.590 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-209-1510, 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
ASAB271
NSN: 5310-00-209-1510
NIINs: 002091510, 002617131
FSC: 5310 — Nuts and Washers
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
outside_diameter0.590 INCHES MINIMUM AND 0.607 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentCADMIUM OVERALL
material_thickness0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-209-1510
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: ASAB271 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.957 INCHES MINIMUM AND 0.985 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
•
HOLE DIAMETER: 0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.957 INCHES MINIMUM AND 0.985 INCHES MAXIMUM IN
MATERIAL THICKNESS0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
HOLE DIAMETER0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
AN936A916Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35333-45Reference document
Same NSN cross-reference
Reference document — Secondary reference
1226-00Reference document
Same NSN cross-reference
Reference document — Secondary reference
3F9559Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ASAB271?
ASAB271 is a WASHER,LOCK.
What parts can replace ASAB271?
There are 4 known substitutes for ASAB271: AN936A916, MS35333-45, 1226-00 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ASAB271?
ASAB271 is cataloged in the U.S. Government catalog under NSN 5310-00-209-1510. 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.