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2147889 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2147889: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL, hole_diameter: 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES COUNTERBORE FACE, outside_diameter: 1.160 INCHES MINIMUM AND 1.179 INCHES MAXIMUM IN, material_thickness: 0.025 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN, material_document_and_classification: AMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-377-4126, 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
2147889
NSN: 5310-00-377-4126
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
hole_diameter0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES COUNTERBORE FACE
outside_diameter1.160 INCHES MINIMUM AND 1.179 INCHES MAXIMUM IN
material_thickness0.025 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
material_document_and_classificationAMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN5310-00-377-4126
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2147889 · 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
•
SURFACE FINISH: 32.0 MICROINCHES COUNTERBORE FACE
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.160 INCHES MINIMUM AND 1.179 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.025 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
•
HOLE DIAMETER: 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES COUNTERBORE FACE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.160 INCHES MINIMUM AND 1.179 INCHES MAXIMUM IN
MATERIAL THICKNESS0.025 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
HOLE DIAMETER0.680 INCHES MINIMUM AND 0.700 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
5310PL0723166Reference 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 2147889?
2147889 is a WASHER,KEY.
What parts can replace 2147889?
There is 1 known substitute for 2147889: 5310PL0723166. Substitute compatibility should be verified for your specific system.
What is the NSN for 2147889?
2147889 is cataloged in the U.S. Government catalog under NSN 5310-00-377-4126. 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.