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642AS0737-1 — WASHER,CONCAVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

642AS0737-1: WASHER,CONCAVE.

The WASHER,CONCAVE is a the manufacturer industrial component. Key specifications include radius: 0.266 INCHES NOMINAL IN, material: STEEL OVERALL, recess_depth: 0.049 INCHES NOMINAL IN, hole_diameter: 0.323 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN, outside_diameter: 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN, style_designator: CONCAVE. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-144-3391, 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
642AS0737-1
NSN: 5310-00-144-3391
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
radius0.266 INCHES NOMINAL IN
materialSTEEL OVERALL
recess_depth0.049 INCHES NOMINAL IN
hole_diameter0.323 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
outside_diameter0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
style_designatorCONCAVE
material_thickness0.111 INCHES NOMINAL IN
NSN5310-00-144-3391
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 642AS0737-1 · 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
•
RADIUS: 0.266 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCAVE
•
OUTSIDE DIAMETER: 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.049 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.111 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.323 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
RADIUS0.266 INCHES NOMINAL IN
STYLE DESIGNATORCONCAVE
OUTSIDE DIAMETER0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM IN
RECESS DEPTH0.049 INCHES NOMINAL IN
MATERIAL THICKNESS0.111 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.323 INCHES MINIMUM AND 0.343 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 4
10116580Reference document
Same NSN cross-reference
Reference document — Informative reference only
SW2000-8WSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MM135-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
ST3M573W4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 642AS0737-1?
642AS0737-1 is a WASHER,CONCAVE.
What parts can replace 642AS0737-1?
There are 4 known substitutes for 642AS0737-1: 10116580, SW2000-8W, MM135-4 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 642AS0737-1?
642AS0737-1 is cataloged in the U.S. Government catalog under NSN 5310-00-144-3391. This indicates validated use in U.S. government and defense supply chains.
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