PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P458981Cap,electrical

American Telephone and Telegraph Co · NSN 5999-00-245-1637 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-245-1637 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-245-1637. Primary manufacturer part number: P458981.
Features
  • Cap,electrical — FSC 5999
  • Mounting Method: INTEGRAL SCREW
  • Usage Design: USED AS PROTECTIVE COVER FOR TRANSMITTER
  • Insert: NOT INCLUDED
  • Diameter: 1.500 INCHES NOMINAL IN
  • Length: 0.375 INCHES NOMINAL IN
  • Chain: NOT INCLUDED
  • Material: PLASTIC OR PLASTIC PHENOLIC BODY
Applications
  • Applications requiring Plastic or Plastic Phenolic Body construction
General Description

The Cap,electrical, cataloged under National Stock Number 5999-00-245-1637, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is American Telephone and Telegraph Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-245-1637
Primary Part NumberP458981
Item NameCap,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAmerican Telephone and Telegraph Co
StatusCANCELLED
Mounting MethodINTEGRAL SCREW
Usage DesignUSED AS PROTECTIVE COVER FOR TRANSMITTER
InsertNOT INCLUDED
Diameter1.500 INCHES NOMINAL IN
Length0.375 INCHES NOMINAL IN
ChainNOT INCLUDED
MaterialPLASTIC OR PLASTIC PHENOLIC BODY
Mounting MethodINTEGRAL SCREW
Usage DesignUSED AS PROTECTIVE COVER FOR TRANSMITTER
InsertNOT INCLUDED
Diameter1.500 INCHES NOMINAL IN
Length0.375 INCHES NOMINAL IN
ChainNOT INCLUDED
MaterialPLASTIC OR PLASTIC PHENOLIC BODY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 1
5360-00-321-75053300027 INTERCHANGEABLE
Spring,helical,compression
Hatch & Kirk, Inc.
Cross-Reference Index
Part NumberManufacturer
P458981 American Telephone and Telegraph Co (USA)
210328-000 Stromberg-Carlson Corp a Plessey Telecommunications Co (USA)
P458981 At and T Corp (USA)
210328 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
P458981 Lucent Technologies Inc Corporate Headquarters (USA)
Related Parts
5360-00-321-7505INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3300027

Frequently Asked Questions

What is NSN 5999-00-245-1637?

NSN 5999-00-245-1637 is a Cap,electrical, manufactured by American Telephone and Telegraph Co, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-245-1637?

NSN 5999-00-245-1637 has 5 cross-referenced part numbers: P458981 (American Telephone and Telegraph Co), 210328-000 (Stromberg-Carlson Corp a Plessey Telecommunications Co), P458981 (At and T Corp), 210328 (Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc), P458981 (Lucent Technologies Inc Corporate Headquarters).

What NSN replaces 5999-00-245-1637?

There is 1 known substitute for 5999-00-245-1637: 5360-00-321-7505. Verify interchangeability with system specifications before substitution.

What are the specifications of P458981?

Key specifications for P458981: Mounting Method: INTEGRAL SCREW; End Item Identification: TYPE NO. H-66/U; Usage Design: USED AS PROTECTIVE COVER FOR TRANSMITTER; Insert: NOT INCLUDED. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-245-1637 still in active supply?

NSN 5999-00-245-1637 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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