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Technical Data Sheet
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KM921-1 — FASTENER,CYLINDER,SPRING LOADED

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

KM921-1: FASTENER,CYLINDER,SPRING LOADED.

FASTENER,CYLINDER,SPRING LOADED. Key specifications include special_features: USED ON XM1 TANK, end_item_identification: 2350-01-136-8738, general_characteristics_item_description: 0.625 IN. LG STUD,0.140 IN.

OD STUD,0.406 IN. OD RETAINING WASHER,0.812 IN. LG HANDLE,0.765 IN W HANDLE IN.

This part is cataloged in the U.S. Government catalog under NSN 5325-01-003-6156, 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
KM921-1
NSN: 5325-01-003-6156
NIINs: 010036156, 012038192
FSC: 5325 — Fastening Devices
CAGE: D0680 — FAIRCHILD FASTENERS EUROPE - CAMLOC GMBH (DEU)
SPECIFICATIONS
special_featuresUSED ON XM1 TANK
end_item_identification2350-01-136-8738
general_characteristics_item_description0.625 IN. LG STUD,0.140 IN. OD STUD,0.406 IN. OD RETAINING WASHER,0.812 IN. LG HANDLE,0.765 IN W HANDLE IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY PACKAGING IN ACCORDANCE WITH MIL-P-21399 AND MATERIAL CONFORMING TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
NSN5325-01-003-6156
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: KM921-1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 0.625 IN. LG STUD,0.140 IN. OD STUD,0.406 IN. OD RETAINING WASHER,0.812 IN. LG HANDLE,0.765 IN W HANDLE IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY PACKAGING IN ACCORDANCE WITH MIL-P-21399 AND MATERIAL CONFORMING TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION0.625 IN. LG STUD,0.140 IN. OD STUD,0.406 IN. OD RETAINING WASHER,0.812 IN. LG HANDLE,0.765 IN W HANDLE IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY PACKAGING IN ACCORDANCE WITH MIL-P-21399 AND MATERIAL CONFORMING TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
SUBSTITUTES & CROSS-REFERENCES 3
KM921Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
0022121Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4378092Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is KM921-1?
KM921-1 is a FASTENER,CYLINDER,SPRING LOADED.
What parts can replace KM921-1?
There are 3 known substitutes for KM921-1: KM921, 0022121, 4378092. Substitute compatibility should be verified for your specific system.
What is the NSN for KM921-1?
KM921-1 is cataloged in the U.S. Government catalog under NSN 5325-01-003-6156. This indicates validated use in U.S. government and defense supply chains.
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