33A57-1 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

33A57-1: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.250 INCHES NOMINAL IN, length: 1.313 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.250 INCHES NOMINAL IN, top_style: CYLINDRICAL HEAD, body_style: RECTANGULAR COMMUTATOR. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-388-0571, 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

33A57-1

NSN: 5977-00-388-0571
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)

SPECIFICATIONS

width	0.250 INCHES NOMINAL IN
length	1.313 INCHES NOMINAL IN
material	ELECTROGRAPHITIC
thickness	0.250 INCHES NOMINAL IN
top_style	CYLINDRICAL HEAD
body_style	RECTANGULAR COMMUTATOR
head_length	0.063 INCHES NOMINAL IN
head_diameter	0.240 INCHES NOMINAL IN
special_features	SPRING COMPRESSION FORCE TO BE 6.250 OZ. MIN AT 2.000 IN.,9.000 OZ. MAX AT 1.625 IN. OZ
style_designator	ONE PIECE
terminal_diameter	0.406 INCHES NOMINAL IN
brush_shunt_length	2.125 INCHES NOMINAL SINGLE SHUNT IN
NSN	5977-00-388-0571

COMPONENT DIAGRAM

KEY FEATURES

•

LENGTH: 1.313 INCHES NOMINAL IN

•

TERMINAL DIAMETER: 0.406 INCHES NOMINAL IN

•

LARGEST OUTSIDE DIAMETER: 0.280 INCHES NOMINAL IN

•

BODY STYLE: RECTANGULAR COMMUTATOR

•

TOP STYLE: CYLINDRICAL HEAD

•

SHUNT POSITION DESIGNATOR: 5

•

STYLE DESIGNATOR: ONE PIECE

•

MATERIAL DOCUMENT AND CLASSIFICATION: UNION CARBIDE CORP,GR F28 MFR REF SINGLE MATERIAL RESPONSE

TECHNICAL CHARACTERISTICS

LENGTH	1.313 INCHES NOMINAL IN
TERMINAL DIAMETER	0.406 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER	0.280 INCHES NOMINAL IN
BODY STYLE	RECTANGULAR COMMUTATOR
TOP STYLE	CYLINDRICAL HEAD
SHUNT POSITION DESIGNATOR	5
STYLE DESIGNATOR	ONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATION	UNION CARBIDE CORP,GR F28 MFR REF SINGLE MATERIAL RESPONSE
SPRING FREE LENGTH	2.500 INCHES NOMINAL IN
PRESSURE SPRING TYPE AND QUANTITY	1 CYLINDRICAL

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 5977-00-001-8867 5977-00-002-9654 5977-00-003-0257 5977-00-003-0258 5977-00-003-0264 5977-00-003-1196 5977-00-003-1197

SUBSTITUTES & CROSS-REFERENCES 2

RC08-0814Reference document

Same NSN cross-reference

Reference document — Secondary reference

NEMAPUBCB1-1961Reference 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 33A57-1?

33A57-1 is a BRUSH,ELECTRICAL CONTACT.

What parts can replace 33A57-1?

There are 2 known substitutes for 33A57-1: RC08-0814, NEMAPUBCB1-1961. Substitute compatibility should be verified for your specific system.

What is the NSN for 33A57-1?

33A57-1 is cataloged in the U.S. Government catalog under NSN 5977-00-388-0571. This indicates validated use in U.S. government and defense supply chains.

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