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68121AS — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68121AS: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.704 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN, outside_diameter: 1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: CADMIUM OVERALL, material_thickness: 0.045 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-275-6707, 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
68121AS
NSN: 5310-00-275-6707
FSC: 5310 — Nuts and Washers
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.704 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN
outside_diameter1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentCADMIUM OVERALL
material_thickness0.045 INCHES NOMINAL IN
NSN5310-00-275-6707
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68121AS · 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: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.045 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.704 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER1.147 INCHES MINIMUM AND 1.166 INCHES MAXIMUM IN
MATERIAL THICKNESS0.045 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.704 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
1230-00-00Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
5310002756707Reference document
Same NSN cross-reference
Reference document — Secondary reference
D41A35CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68121AS?
68121AS is a WASHER,LOCK.
What parts can replace 68121AS?
There are 3 known substitutes for 68121AS: 1230-00-00, 5310002756707, D41A35C. Substitute compatibility should be verified for your specific system.
What is the NSN for 68121AS?
68121AS is cataloged in the U.S. Government catalog under NSN 5310-00-275-6707. 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.