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BB37952 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BB37952: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.293 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-010-6496, 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
BB37952
NSN: 5310-00-010-6496
FSC: 5310 — Nuts and Washers
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
hole_diameter0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.293 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OR AISI NATIONAL SPEC ALL MATERIAL RESPONSES OR SAE NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-010-6496
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BB37952 · 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
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OR AISI NATIONAL SPEC ALL MATERIAL RESPONSES OR SAE NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.293 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OR AISI NATIONAL SPEC ALL MATERIAL RESPONSES OR SAE NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.293 INCHES MAXIMUM IN
MATERIAL THICKNESS0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
HOLE DIAMETER0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
CA5-12P2Reference document
Same NSN cross-reference
Reference document — Secondary reference
X7-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
106496Reference document
Same NSN cross-reference
Reference document — Secondary reference
10WASHSPGSTLReference document
Same NSN cross-reference
Reference document — Secondary reference
MS35338-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
118Reference 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 BB37952?
BB37952 is a WASHER,LOCK.
What parts can replace BB37952?
There are 8 known substitutes for BB37952: CA5-12P2, X7-9, 106496 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BB37952?
BB37952 is cataloged in the U.S. Government catalog under NSN 5310-00-010-6496. 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.