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637209 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

637209: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.310 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, outside_diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN, special_features: SHOULDER HEIGHT 0.0801 IN. MIN TO 0.1001 IN.

MAX IN, style_designator: SHOULDERED, shoulder_diameter: 0.3698 INCHES MINIMUM AND 0.3728 INCHES MAXIMUM IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-737-1398, 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
637209
NSN: 5310-00-737-1398
FSC: 5310 — Nuts and Washers
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.310 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
outside_diameter1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
special_featuresSHOULDER HEIGHT 0.0801 IN. MIN TO 0.1001 IN. MAX IN
style_designatorSHOULDERED
shoulder_diameter0.3698 INCHES MINIMUM AND 0.3728 INCHES MAXIMUM IN
material_thickness0.0199 INCHES MINIMUM AND 0.0399 INCHES MAXIMUM IN
NSN5310-00-737-1398
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 637209 · 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
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.0199 INCHES MINIMUM AND 0.0399 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 0.3698 INCHES MINIMUM AND 0.3728 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.310 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
MATERIAL THICKNESS0.0199 INCHES MINIMUM AND 0.0399 INCHES MAXIMUM IN
SHOULDER DIAMETER0.3698 INCHES MINIMUM AND 0.3728 INCHES MAXIMUM IN
SPECIAL FEATURESSHOULDER HEIGHT 0.0801 IN. MIN TO 0.1001 IN. MAX IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.310 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
GPW9484Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 637209?
637209 is a WASHER,SHOULDERED.
What parts can replace 637209?
There is 1 known substitute for 637209: GPW9484. Substitute compatibility should be verified for your specific system.
What is the NSN for 637209?
637209 is cataloged in the U.S. Government catalog under NSN 5310-00-737-1398. 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.