PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

US1491Holder,electrical Contact Brush

Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies · NSN 5977-00-038-0977 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-038-0977 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-038-0977. Primary manufacturer part number: US1491.
Features
  • Holder,electrical Contact Brush — FSC 5977
  • Brush Spring Adjustability: ADJUSTABLE
  • Brush Pressure Spring Type Accommodated: HELICAL TORSION
  • Terminal Type: SCREW
  • Inside Thickness: 0.312 INCHES NOMINAL IN
  • Brush Quantity Accommodated Per Holder: 1
  • Inside Width: 0.812 INCHES NOMINAL IN
  • Terminal Quantity: 1
Applications
  • Applications requiring Copper Alloy Box construction
General Description

The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-038-0977, is classified within Federal Supply Class 5977 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-038-0977
Primary Part NumberUS1491
Item NameHolder,electrical Contact Brush
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerLouis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies
StatusACTIVE
Brush Spring AdjustabilityADJUSTABLE
Brush Pressure Spring Type AccommodatedHELICAL TORSION
Terminal TypeSCREW
Inside Thickness0.312 INCHES NOMINAL IN
Brush Quantity Accommodated Per Holder1
Inside Width0.812 INCHES NOMINAL IN
Terminal Quantity1
Overall Thickness2.000 INCHES NOMINAL IN
Mounting FacilitySETSCREW
Mounting Facility Quantity1
Inside Length1.125 INCHES NOMINAL IN
MaterialCOPPER ALLOY BOX
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-061-627410911 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
5330-00-412-620524260 INTERCHANGEABLE
Gasket
Curtiss-Wright Electro-Mechanical Corporation Div Epd
2040-00-520-74743270410REVA INTERCHANGEABLE
Lifting Rod Assy
Naval Ship Systems Command
6110-01-210-439524260 INTERCHANGEABLE
Starter,motor
Ward Leonard Ct Llc
5310-01-341-644924260 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Burch Company Inc, the
5935-01-343-963624260 INTERCHANGEABLE
Backshell,electrical Connector
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
6840-01-393-703924260 INTERCHANGEABLE
Deodorant,utility
Thetford Corp
Cross-Reference Index
Part NumberManufacturer
US1491 Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies (USA)
24260 Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies (USA)
32126PC53 Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies (USA)
Related Parts
5133-00-061-6274INTERCHANGEABLE
DRILL,TWIST
10911
5330-00-412-6205INTERCHANGEABLE
GASKET
24260
2040-00-520-7474INTERCHANGEABLE
LIFTING ROD ASSY
3270410REVA
6110-01-210-4395INTERCHANGEABLE
STARTER,MOTOR
24260
5310-01-341-6449INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
24260
5935-01-343-9636INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
24260
6840-01-393-7039INTERCHANGEABLE
DEODORANT,UTILITY
24260

Frequently Asked Questions

What is NSN 5977-00-038-0977?

NSN 5977-00-038-0977 is a Holder,electrical Contact Brush, manufactured by Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-038-0977?

NSN 5977-00-038-0977 has 3 cross-referenced part numbers: US1491 (Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies), 24260 (Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies), 32126PC53 (Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies).

What NSN replaces 5977-00-038-0977?

There are 7 known substitutes for 5977-00-038-0977: 5133-00-061-6274, 5330-00-412-6205, 2040-00-520-7474 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of US1491?

Key specifications for US1491: Brush Spring Adjustability: ADJUSTABLE; Brush Pressure Spring Type Accommodated: HELICAL TORSION; Terminal Type: SCREW; Inside Thickness: 0.312 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com