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11621857 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

11621857: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_depth: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN, hole_diameter: 0.625 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN, outside_diameter: 1.303 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN, material_thickness: 0.160 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-522-3596, 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
11621857
NSN: 5310-00-522-3596
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
recess_depth0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
hole_diameter0.625 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
outside_diameter1.303 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
material_thickness0.160 INCHES NOMINAL IN
NSN5310-00-522-3596
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11621857 · 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
•
OUTSIDE DIAMETER: 1.303 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.160 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.625 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER1.303 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
RECESS DEPTH0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
MATERIAL THICKNESS0.160 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.625 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
C137012Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11621857?
11621857 is a WASHER,RECESSED.
What parts can replace 11621857?
There is 1 known substitute for 11621857: C137012. Substitute compatibility should be verified for your specific system.
What is the NSN for 11621857?
11621857 is cataloged in the U.S. Government catalog under NSN 5310-00-522-3596. 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.