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91102A750 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91102A750: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.250 INCHES NOMINAL IN, hardness_rating: 38.0 ROCKWELL C MINIMUM, outside_diameter: 0.490 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-502-2143, 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
91102A750
NSN: 5310-01-502-2143
NIINs: 015022143, 015726611, 016112340
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.250 INCHES NOMINAL IN
hardness_rating38.0 ROCKWELL C MINIMUM
outside_diameter0.490 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness0.060 INCHES NOMINAL IN
end_item_identificationSTRYKER
part_name_assigned_by_controlling_agencySPLIT LOCK WASHER
NSN5310-01-502-2143
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91102A750 · 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
•
HARDNESS RATING: 38.0 ROCKWELL C NOMINAL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 0.487 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.260 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING38.0 ROCKWELL C NOMINAL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.487 INCHES NOMINAL IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
END ITEM IDENTIFICATION2350-01-248-7620; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); LOGISTICS SUPPORT VESSEL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.260 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
B18.21.1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91102A750?
91102A750 is a WASHER,LOCK.
What parts can replace 91102A750?
There is 1 known substitute for 91102A750: B18.21.1. Substitute compatibility should be verified for your specific system.
What is the NSN for 91102A750?
91102A750 is cataloged in the U.S. Government catalog under NSN 5310-01-502-2143. 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.