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A25103 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A25103: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, overall_height: 4.2 MILLIMETERS NOMINAL MM, nominal_thread_size: 4.0 MILLIMETERS MM, part_name_assigned_by_controlling_agency: NUT-HEX FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-406-7916, 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
A25103
NSN: 5310-01-406-7916
NIINs: 014067916, 017177300
FSC: 5310 — Nuts and Washers
CAGE: K0967 — MBDA UK LTD (GBR)
SPECIFICATIONS
nut_styleHEXAGON
overall_height4.2 MILLIMETERS NOMINAL MM
nominal_thread_size4.0 MILLIMETERS MM
part_name_assigned_by_controlling_agencyNUT-HEX FLANGE
NSN5310-01-406-7916
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A25103 · 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: 0.235 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC POLYIMIDE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.125 INCHES NOMINAL IN
•
THICKNESS: 0.040 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.235 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC POLYIMIDE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.125 INCHES NOMINAL IN
THICKNESS0.040 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A25103?
A25103 is a WASHER,FLAT.
What is the NSN for A25103?
A25103 is cataloged in the U.S. Government catalog under NSN 5310-01-406-7916. 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.