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4001886 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4001886: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, hole_diameter: 2.560 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN, outside_diameter: 2.810 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN, material_thickness: 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN, external_key_quantity: 19, material_document_and_classification: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-367-8628, 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
4001886
NSN: 5310-00-367-8628
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
hole_diameter2.560 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN
outside_diameter2.810 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN
material_thickness0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
external_key_quantity19
material_document_and_classificationAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-367-8628
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4001886 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.810 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 19
•
MATERIAL: STEEL COMP 321 OVERALL
•
HOLE DIAMETER: 2.560 INCHES MINIMUM AND 2.570 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.810 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY19
MATERIALSTEEL COMP 321 OVERALL
HOLE DIAMETER2.560 INCHES MINIMUM AND 2.570 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
5310PL0721333Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4001886?
4001886 is a WASHER,KEY.
What parts can replace 4001886?
There is 1 known substitute for 4001886: 5310PL0721333. Substitute compatibility should be verified for your specific system.
What is the NSN for 4001886?
4001886 is cataloged in the U.S. Government catalog under NSN 5310-00-367-8628. 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.