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21D1262-100 — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

21D1262-100: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include nut_style: PLATE (FLOATING), nut_length: 2.00 INCHES NOMINAL IN, plate_width: 1.13 INCHES NOMINAL IN, hole_type_and_quantity: 2 TAPPED, nut_mounting_provision: STRAIGHT HOLES, end_item_identification: CH-53A/D/E HELICOPTER A. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-651-7533, 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
21D1262-100
NSN: 5310-01-651-7533
FSC: 5310 — Nuts and Washers
CAGE: 74RJ4 — SCIENCE APPLICATIONS INTERNATIONAL CORPORATION DBA SAIC DIV CLASSIFIED AIRCRAFT OPERATIONS (USA)
SPECIFICATIONS
nut_stylePLATE (FLOATING)
nut_length2.00 INCHES NOMINAL IN
plate_width1.13 INCHES NOMINAL IN
hole_type_and_quantity2 TAPPED
nut_mounting_provisionSTRAIGHT HOLES
end_item_identificationCH-53A/D/E HELICOPTER A
mounting_hole_arrangement_style2 HOLES
part_name_assigned_by_controlling_agencyNUT PLATE ASSY
NSN5310-01-651-7533
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21D1262-100 · 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
•
NUT LENGTH: 2.00 INCHES NOMINAL IN
•
PLATE WIDTH: 1.13 INCHES NOMINAL IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
NUT STYLE: PLATE (FLOATING)
•
NUT MOUNTING PROVISION: STRAIGHT HOLES
•
HOLE TYPE AND QUANTITY: 2 TAPPED
TECHNICAL CHARACTERISTICS
NUT LENGTH2.00 INCHES NOMINAL IN
PLATE WIDTH1.13 INCHES NOMINAL IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT PLATE ASSY
NUT STYLEPLATE (FLOATING)
END ITEM IDENTIFICATIONCH-53A/D/E HELICOPTER A
NUT MOUNTING PROVISIONSTRAIGHT HOLES
HOLE TYPE AND QUANTITY2 TAPPED
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

No substitute or cross-reference records for this part.

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 21D1262-100?
21D1262-100 is a NUT,SELF-LOCKING,PLATE.
What is the NSN for 21D1262-100?
21D1262-100 is cataloged in the U.S. Government catalog under NSN 5310-01-651-7533. 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.