NSN 5977-00-504-5408 · NIIN 005045408 · Part number 645285
Lockheed Martin Corporation Div Rms - Mitchel Field · FSC 5977 — Electrical Contact Brushes and Electrodes · FSG 59 — Electrical and Electronic Equipment Components · CAGE 56232
Government record, cited
NSN 5977-00-504-5408 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-504-5408. Manufacturer of record part number: 645285.
Also searched as5977-00-504-5408 ·
5977005045408 ·
NIIN 005045408 ·
00-504-5408 ·
FSC 5977 Electrical Contact Brushes and Electrodes · CAGE 56232 · 645285
Mounting Configuration: SIX 0.125 IN. DIA MTG HOLES EQUALLY SPACED ON 4.625 IN. DIA BOLT CIRCLE IN
Width: 0.313 INCHES NOMINAL IN
Contact Ring Quantity: 5
1 manufacturer part number on file
Identification
NSN: 5977-00-504-5408
NIIN: 005045408
FSC: 5977 — Electrical Contact Brushes and Electrodes
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 645285
Manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
General Description
The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-00-504-5408, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5977-00-504-5408
Primary Part Number
645285
Item Name
Ring Assembly,electrical Contact
FSC / FSG
5977 / 59 — Electrical Contact Brushes and Electrodes
Manufacturer
Lockheed Martin Corporation Div Rms - Mitchel Field
Status
ACTIVE
FSC Application Data
COMPASS,GYRO
Overall Diameter
5.375 INCHES NOMINAL IN
Diameter
5.188 INCHES NOMINAL IN
Mounting Configuration
SIX 0.125 IN. DIA MTG HOLES EQUALLY SPACED ON 4.625 IN. DIA BOLT CIRCLE IN
Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
No interchangeability data on file.
Other items in FSC 5977 — Electrical Contact Brushes and Electrodes
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5977-00-001-8018
BRUSH,ELECTRICAL CONTACT
5977-00-001-8867
5977-00-001-8867 · Item name not on file
5977-00-002-9654
5977-00-002-9654 · Item name not on file
5977-00-003-0257
BRUSH SET,ELECTRICAL CONTACT
5977-00-003-0258
HOLDER,ELECTRICAL CONTACT BRUSH
5977-00-003-0264
5977-00-003-0264 · Item name not on file
5977-00-003-1196
ELECTRODE
5977-00-003-1197
5977-00-003-1197 · Item name not on file
Frequently Asked Questions
What is NSN 5977-00-504-5408?
NSN 5977-00-504-5408 is a Ring Assembly,electrical Contact, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
What part numbers are listed for NSN 5977-00-504-5408?
NSN 5977-00-504-5408 has 1 manufacturer part number on file: 645285 (Lockheed Martin Corporation Div Rms - Mitchel Field).
What are the specifications of 645285?
Key specifications for 645285: Overall Height: 4.125 INCHES NOMINAL IN; FSC Application Data: COMPASS,GYRO; Overall Diameter: 5.375 INCHES NOMINAL IN; Diameter: 5.188 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5977-00-504-5408 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.