Ring Assembly, Electrical Contact5977-00-212-1012

NSN 5977-00-212-1012 · NIIN 002121012

FSC 5977 — Electrical Contact Brushes and Electrodes · FSG 59 — Electrical and Electronic Equipment Components

Government record, cited

Also searched as 5977-00-212-1012 · 5977002121012 · NIIN 002121012 · 00-212-1012 · FSC 5977 Electrical Contact Brushes and Electrodes

Nearby stock numbers ← 5977-00-212-0745 · 5977-00-212-1073 →

Features

Ring Assembly,electrical Contact — FSC 5977
FSC Application Data: GYROSCOPE ASSEMBLY
Overall Diameter: 0.156 INCHES NOMINAL IN
Diameter: 0.080 INCHES NOMINAL IN
Surface Treatment: SILVER RING
Mounting Configuration: SHAFT MOUNTED
Width: 0.031 INCHES NOMINAL IN
Contact Ring Quantity: 8

Identification

NSN: 5977-00-212-1012
NIIN: 002121012
FSC: 5977 — Electrical Contact Brushes and Electrodes
FSG: 59 — Electrical and Electronic Equipment Components

General Description

The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-212-1012, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5977-00-212-1012
Item Name	Ring Assembly,electrical Contact
FSC / FSG	5977 / 59 — Electrical Contact Brushes and Electrodes
Status	ACTIVE
FSC Application Data	GYROSCOPE ASSEMBLY
Overall Diameter	0.156 INCHES NOMINAL IN
Diameter	0.080 INCHES NOMINAL IN
Surface Treatment	SILVER RING
Mounting Configuration	SHAFT MOUNTED
Width	0.031 INCHES NOMINAL IN
Contact Ring Quantity	8

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

5365-01-004-1289343D146G01 POSSIBLE MATCH

RING,RETAINING,INSTRUMENT

Possible match (shared part number)Northrop Grumman Support Services Corp

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
416971	3/9 Design control — primary reference U.S. Government activity

Related Parts

5365-01-004-1289POSSIBLE MATCH

RING,RETAINING,INSTRUMENT

343D146G01

Frequently Asked Questions

What is NSN 5977-00-212-1012?

NSN 5977-00-212-1012 is a Ring Assembly,electrical Contact, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.

What NSN replaces 5977-00-212-1012?

1 possible match (shared part number, not a government interchangeability claim): 5365-01-004-1289. Verify interchangeability with system specifications before substitution.

What are the specifications of 5977-00-212-1012?

Key specifications for 5977-00-212-1012: FSC Application Data: GYROSCOPE ASSEMBLY; Overall Diameter: 0.156 INCHES NOMINAL IN; Diameter: 0.080 INCHES NOMINAL IN; Overall Length: 1.064 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 5977-00-212-1012 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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