21388C-625R — COUPLING,CLAMP,GROOVED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

21388C-625R: COUPLING,CLAMP,GROOVED.

The COUPLING,CLAMP,GROOVED is a the manufacturer industrial component. Key specifications include shape: ROUND, height: 0.130 INCHES NOMINAL IN, material: STEEL COMP 431 BOLT, nut_type: SELF-LOCKING HEXAGON, band_width: 0.750 INCHES NOMINAL IN, root_width: 0.844 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5342-00-597-8706, 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

21388C-625R

NSN: 5342-00-597-8706
NIINs: 005978706, 011067082
FSC: 5342 — Hardware, Weapon System
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)

SPECIFICATIONS

shape	ROUND
height	0.130 INCHES NOMINAL IN
material	STEEL COMP 431 BOLT
nut_type	SELF-LOCKING HEXAGON
band_width	0.750 INCHES NOMINAL IN
root_width	0.844 INCHES NOMINAL IN
latch_style	SINGLE
temp_rating	800.0 FAHRENHEIT DEGF
band_thickness	0.020 INCHES NOMINAL IN
retainer_width	1.500 INCHES NOMINAL IN
inside_diameter	6.510 INCHES NOMINAL IN
segment_quantity	2
NSN	5342-00-597-8706

COMPONENT DIAGRAM

KEY FEATURES

•

BAND WIDTH: 0.875 INCHES NOMINAL IN

•

ROOT WIDTH: 0.844 INCHES NOMINAL IN

•

RETAINER WIDTH: 1.500 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE 4037 ASSN STD SINGLE MATERIAL RESPONSE BOLT

•

SHAPE: ROUND

•

CROSS-SECTIONAL SHAPE STYLE: GROOVED RETAINER

TECHNICAL CHARACTERISTICS

BAND WIDTH	0.875 INCHES NOMINAL IN
ROOT WIDTH	0.844 INCHES NOMINAL IN
RETAINER WIDTH	1.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 4037 ASSN STD SINGLE MATERIAL RESPONSE BOLT
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5059, TYPE 301, HARD MIL SPEC SINGLE MATERIAL RESPONSE SEGMENT
MATERIAL DOCUMENT AND CLASSIFICATION	SAE 4037 ASSN STD SINGLE MATERIAL RESPONSE BAND
SHAPE	ROUND
CROSS-SECTIONAL SHAPE STYLE	GROOVED RETAINER
BAND THICKNESS	0.019 INCHES NOMINAL IN
SEALING INNER LINER	NOT INCLUDED

SUBSTITUTES & CROSS-REFERENCES 2

LS1561-50Reference document

Same NSN cross-reference

Reference document — Secondary reference

21693-3-125Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 21388C-625R?

21388C-625R is a COUPLING,CLAMP,GROOVED.

What parts can replace 21388C-625R?

There are 2 known substitutes for 21388C-625R: LS1561-50, 21693-3-125. Substitute compatibility should be verified for your specific system.

What is the NSN for 21388C-625R?

21388C-625R is cataloged in the U.S. Government catalog under NSN 5342-00-597-8706. This indicates validated use in U.S. government and defense supply chains.

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21388C-625R — COUPLING,CLAMP,GROOVED

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