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88-006B — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

88-006B: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include outside_diameter: 0.562 INCHES NOMINAL IN, special_features: ALTERNATE TEETH TWISTED IN OPPOSITE DIRECTIONS, style_designator: FLAT INTERNAL TEETH, material_thickness: 0.018 INCHES NOMINAL IN, end_item_identification: 2320-01-542-9941, part_name_assigned_by_controlling_agency: LOCKWASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-618-6965, 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
88-006B
NSN: 5310-01-618-6965
FSC: 5310 — Nuts and Washers
CAGE: 77342 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
outside_diameter0.562 INCHES NOMINAL IN
special_featuresALTERNATE TEETH TWISTED IN OPPOSITE DIRECTIONS
style_designatorFLAT INTERNAL TEETH
material_thickness0.018 INCHES NOMINAL IN
end_item_identification2320-01-542-9941
part_name_assigned_by_controlling_agencyLOCKWASHER
NSN5310-01-618-6965
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 88-006B · 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: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.018 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
MATERIAL THICKNESS0.018 INCHES NOMINAL IN
SPECIAL FEATURESALTERNATE TEETH TWISTED IN OPPOSITE DIRECTIONS
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKWASHER
END ITEM IDENTIFICATION2320-01-542-9941
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 1
29KP342Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 88-006B?
88-006B is a WASHER,LOCK.
What parts can replace 88-006B?
There is 1 known substitute for 88-006B: 29KP342. Substitute compatibility should be verified for your specific system.
What is the NSN for 88-006B?
88-006B is cataloged in the U.S. Government catalog under NSN 5310-01-618-6965. 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.