RST-181-C — RING,RETAINING

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

RST-181-C: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 1.694 INCHES MINIMUM AND 1.714 INCHES MAXIMUM IN, major_thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, strength_rating: ERR-060, outside_diameter: 1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-147-0059, 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

RST-181-C

NSN: 5325-01-147-0059
FSC: 5325 — Fastening Devices
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)

SPECIFICATIONS

material	STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090
ring_style	SPIRAL
usage_design	EXTERNAL
inside_diameter	1.694 INCHES MINIMUM AND 1.714 INCHES MAXIMUM IN
major_thickness	0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
strength_rating	ERR-060
outside_diameter	1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN
surface_treatment	CADMIUM AND CHROMATE
casehardening_indicator	NOT CASEHARDENED
cross-sectional_shape_style	DOUBLE OVAL
surface_treatment_document_and_classification	QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
NSN	5325-01-147-0059

COMPONENT DIAGRAM

KEY FEATURES

•

USAGE DESIGN: EXTERNAL

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE

•

STRENGTH RATING: ERR-060

•

MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE

•

CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL

•

OUTSIDE DIAMETER: 1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN

•

MAJOR THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN

•

INSIDE DIAMETER: 1.694 INCHES MINIMUM AND 1.714 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

USAGE DESIGN	EXTERNAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416, TYPE 2, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
STRENGTH RATING	ERR-060
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66, COMP 1070 FED STD 1ST MATERIAL RESPONSE AND FED STD 66, COMP 1072 FED STD 2ND MATERIAL RESPONSE AND FED STD 66, COMP 1074 FED STD 3RD MATERIAL RESPONSE AND FED STD 66, COMP 1075 FED STD 4TH MATERIAL RESPONSE AND FED STD 66, COMP 1078 FED STD 5TH MATERIAL RESPONSE AND FED STD 66, COMP 1080 FED STD 6TH MATERIAL RESPONSE AND FED STD 66, COMP 1084 FED STD 7TH MATERIAL RESPONSE AND FED STD 66, COMP 1085 FED STD 8TH MATERIAL RESPONSE AND FED STD 66, COMP 1086 FED STD 9TH MATERIAL RESPONSE AND FED STD 66, COMP 1090 FED STD 10TH MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLE	DOUBLE OVAL
OUTSIDE DIAMETER	1.940 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN
MAJOR THICKNESS	0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
INSIDE DIAMETER	1.694 INCHES MINIMUM AND 1.714 INCHES MAXIMUM IN
CASEHARDENING INDICATOR	NOT CASEHARDENED
RING STYLE	SPIRAL

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

9M187-181Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

RST-181-CD-M9Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 RST-181-C?

RST-181-C is a RING,RETAINING.

What parts can replace RST-181-C?

There are 2 known substitutes for RST-181-C: 9M187-181, RST-181-CD-M9. Substitute compatibility should be verified for your specific system.

What is the NSN for RST-181-C?

RST-181-C is cataloged in the U.S. Government catalog under NSN 5325-01-147-0059. This indicates validated use in U.S. government and defense supply chains.

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