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SM-A-874455-2 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SM-A-874455-2: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL, hole_diameter: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN, shoulder_height: 0.011 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN, outside_diameter: 0.308 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, special_features: COLOR NATURAL, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-372-8830, 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
SM-A-874455-2
NSN: 5310-00-372-8830
FSC: 5310 — Nuts and Washers
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
hole_diameter0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
shoulder_height0.011 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
outside_diameter0.308 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
special_featuresCOLOR NATURAL
style_designatorSHOULDERED
shoulder_diameter0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
material_thickness0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
material_document_and_classificationMIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-372-8830
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SM-A-874455-2 · 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
•
SHOULDER HEIGHT: 0.011 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.308 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.011 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.308 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
MATERIAL THICKNESS0.042 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
SHOULDER DIAMETER0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR NATURAL
MATERIALPLASTIC POLYHEXAMETHYLENE AMIDE OVERALL
HOLE DIAMETER0.140 INCHES MINIMUM AND 0.150 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 2
2634-18716N140Reference document
Same NSN cross-reference
Reference document — Secondary reference
200700A304Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 SM-A-874455-2?
SM-A-874455-2 is a WASHER,SHOULDERED.
What parts can replace SM-A-874455-2?
There are 2 known substitutes for SM-A-874455-2: 2634-18716N140, 200700A304. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-A-874455-2?
SM-A-874455-2 is cataloged in the U.S. Government catalog under NSN 5310-00-372-8830. 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.