PartsTable
Technical Data Sheet
Download PDF

88-20033-25A — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

88-20033-25A: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.059 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, hole_diameter: 0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN, overall_diameter: 0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN, surface_treatment: CADMIUM OR ZINC OVERALL, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-044-6477, 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
88-20033-25A
NSN: 5310-00-044-6477
FSC: 5310 — Nuts and Washers
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
thickness0.059 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
hole_diameter0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
overall_diameter0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
surface_treatmentCADMIUM OR ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE
departure_from_cited_documentAS MODIFIED BY SURFACE TREATMENT
material_document_and_classificationASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-044-6477
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 88-20033-25A · 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: 0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY SURFACE TREATMENT
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.995 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY SURFACE TREATMENT
NONDEFINITIVE SPEC/STD DATAA TYPE
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 4
88-20564-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS51412-25Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
88-20033Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
88-20564Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 88-20033-25A?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 88-20033-25A?
88-20033-25A is a WASHER,FLAT.
What parts can replace 88-20033-25A?
There are 4 known substitutes for 88-20033-25A: 88-20564-12, MS51412-25, 88-20033 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 88-20033-25A?
88-20033-25A is cataloged in the U.S. Government catalog under NSN 5310-00-044-6477. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 88-20033-25A

✓ 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.