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2SM73 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2SM73: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, thickness: 0.063 INCHES NOMINAL IN, hole_diameter: 0.531 INCHES NOMINAL IN, hardness_rating: 80.0 DUROMETER NOMINAL, overall_diameter: 0.938 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-892-4730, 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
2SM73
NSN: 5310-00-892-4730
FSC: 5310 — Nuts and Washers
CAGE: 53964 — KAYDON CUSTOM FILTRATION CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
thickness0.063 INCHES NOMINAL IN
hole_diameter0.531 INCHES NOMINAL IN
hardness_rating80.0 DUROMETER NOMINAL
overall_diameter0.938 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-892-4730
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2SM73 · 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: 0.938 INCHES NOMINAL IN
•
HARDNESS RATING: 80.0 DUROMETER NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.531 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.938 INCHES NOMINAL IN
HARDNESS RATING80.0 DUROMETER NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALRUBBER SYNTHETIC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.531 INCHES NOMINAL IN
THICKNESS0.063 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
200-157Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
203-15-9-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
C1019 PIECE 97Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2SM73?
2SM73 is a WASHER,FLAT.
What parts can replace 2SM73?
There are 3 known substitutes for 2SM73: 200-157, 203-15-9-2, C1019 PIECE 97. Substitute compatibility should be verified for your specific system.
What is the NSN for 2SM73?
2SM73 is cataloged in the U.S. Government catalog under NSN 5310-00-892-4730. 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.