RG21-66 — RING,RETAINING

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

RG21-66: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, usage_design: EXTERNAL, inside_diameter: 1.250 INCHES NOMINAL IN, major_thickness: 0.035 INCHES NOMINAL IN, surface_treatment: PASSIVATE, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-082-3036, 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

RG21-66

NSN: 5325-01-082-3036
FSC: 5325 — Fastening Devices
CAGE: 08748 — ELDEC AEROSPACE CORP (USA)

SPECIFICATIONS

material	STEEL COMP 302
usage_design	EXTERNAL
inside_diameter	1.250 INCHES NOMINAL IN
major_thickness	0.035 INCHES NOMINAL IN
surface_treatment	PASSIVATE
casehardening_indicator	NOT CASEHARDENED
cross-sectional_shape_style	RECTANGULAR
material_document_and_classification	MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE
NSN	5325-01-082-3036

COMPONENT DIAGRAM

KEY FEATURES

•

USAGE DESIGN: EXTERNAL

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE

•

CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR

•

MAJOR THICKNESS: 0.035 INCHES NOMINAL IN

•

INSIDE DIAMETER: 1.250 INCHES NOMINAL IN

•

CASEHARDENING INDICATOR: NOT CASEHARDENED

•

SURFACE TREATMENT: PASSIVATE

•

MATERIAL: STEEL COMP 302

TECHNICAL CHARACTERISTICS

USAGE DESIGN	EXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLE	RECTANGULAR
MAJOR THICKNESS	0.035 INCHES NOMINAL IN
INSIDE DIAMETER	1.250 INCHES NOMINAL IN
CASEHARDENING INDICATOR	NOT CASEHARDENED
SURFACE TREATMENT	PASSIVATE
MATERIAL	STEEL COMP 302

OTHER ITEMS IN FSC 5325 — Fastening Devices

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317

SUBSTITUTES & CROSS-REFERENCES 2

11450549-4Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

755002A7780-1Reference 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 RG21-66?

RG21-66 is a RING,RETAINING.

What parts can replace RG21-66?

There are 2 known substitutes for RG21-66: 11450549-4, 755002A7780-1. Substitute compatibility should be verified for your specific system.

What is the NSN for RG21-66?

RG21-66 is cataloged in the U.S. Government catalog under NSN 5325-01-082-3036. This indicates validated use in U.S. government and defense supply chains.

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