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88115999 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

88115999: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.090 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN, hole_diameter: 0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN, overall_diameter: 1.243 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-351-3532, 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
88115999
NSN: 5310-01-351-3532
FSC: 5310 — Nuts and Washers
CAGE: 07878 — AERONAUTICAL AND SUPPORT EQUIPMENT TYPE/ASETDS/AFLCMC/EZSC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.090 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
hole_diameter0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
overall_diameter1.243 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-351-3532
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 88115999 · 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
•
OVERALL DIAMETER: 1.243 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
•
THICKNESS: 0.090 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.243 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.526 INCHES MINIMUM AND 0.546 INCHES MAXIMUM IN
THICKNESS0.090 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
120-02304Reference document
Same NSN cross-reference
Reference document — Secondary reference
5714-500R-100Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
13229E0037-17Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
120-02304 0.500 REGReference document
Same NSN cross-reference
Reference document — Design control — primary 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 88115999?
88115999 is a WASHER,FLAT.
What parts can replace 88115999?
There are 4 known substitutes for 88115999: 120-02304, 5714-500R-100, 13229E0037-17 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 88115999?
88115999 is cataloged in the U.S. Government catalog under NSN 5310-01-351-3532. 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.