PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10503ACap,electrical

Telephone Company of America Incorporated · NSN 5999-00-241-6423 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-241-6423 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-241-6423. Primary manufacturer part number: 10503A.
Features
  • Cap,electrical — FSC 5999
  • Surface Treatment: ANODIZE
  • Material Document and Classification: QQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Mounting Method: THREAD
  • Chain: NOT INCLUDED
  • Usage Design: PROTECTS,RETAINS,AND POSITIONS RECEIVER ELEMENT
  • Thread Size: 1-1/2-24
  • Diameter: 2.000 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Cap,electrical, cataloged under National Stock Number 5999-00-241-6423, 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 Telephone Company of America Incorporated. Government technical data includes 20 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-241-6423
Primary Part Number10503A
Item NameCap,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTelephone Company of America Incorporated
StatusACTIVE
Surface TreatmentANODIZE
Material Document and ClassificationQQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE BODY
Mounting MethodTHREAD
ChainNOT INCLUDED
Usage DesignPROTECTS,RETAINS,AND POSITIONS RECEIVER ELEMENT
Thread Size1-1/2-24
Diameter2.000 INCHES NOMINAL IN
Length0.531 INCHES NOMINAL IN
MaterialALUMINUM ALLOY BODY
InsertNOT INCLUDED
Surface TreatmentANODIZE
Material Document and ClassificationQQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE BODY
Mounting MethodTHREAD
ChainNOT INCLUDED
Usage DesignPROTECTS,RETAINS,AND POSITIONS RECEIVER ELEMENT
Thread Size1-1/2-24
Diameter2.000 INCHES NOMINAL IN
Length0.531 INCHES NOMINAL IN
MaterialALUMINUM ALLOY BODY
InsertNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeX
Verified Substitutes 5
5995-00-070-8747SC-D-68284 INTERCHANGEABLE
Cable Assembly,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5340-00-967-7795A101-12 INTERCHANGEABLE
Clamp,instrument Mounting
Renbrandt, Inc.
5935-01-142-0351 INTERCHANGEABLE
Connector,receptacle,electrical
5120-01-397-3154 INTERCHANGEABLE
Socket,socket Wrench
4720-01-519-2271A101-12 INTERCHANGEABLE
Hose,nonmetallic
Nrp Jones, Llc Dba Nephi Rubber Products
Cross-Reference Index
Part NumberManufacturer
TR347 Telectro Systems Corp
10503A PRIMARY Telephone Company of America Incorporated (USA)
SC-C-52520 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
TC1706 Great American Industries Inc (USA)
A10112 Autodyne Manufacturing Co Inc (USA)
Related Parts
5995-00-070-8747INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
SC-D-68284
5340-00-967-7795INTERCHANGEABLE
CLAMP,INSTRUMENT MOUNTING
A101-12
5935-01-142-0351INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5120-01-397-3154INTERCHANGEABLE
SOCKET,SOCKET WRENCH
4720-01-519-2271INTERCHANGEABLE
HOSE,NONMETALLIC
A101-12

Frequently Asked Questions

What is NSN 5999-00-241-6423?

NSN 5999-00-241-6423 is a Cap,electrical, manufactured by Telephone Company of America Incorporated, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-241-6423?

NSN 5999-00-241-6423 has 5 cross-referenced part numbers: TR347 (Telectro Systems Corp), 10503A (Telephone Company of America Incorporated), SC-C-52520 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), TC1706 (Great American Industries Inc), A10112 (Autodyne Manufacturing Co Inc).

What NSN replaces 5999-00-241-6423?

There are 5 known substitutes for 5999-00-241-6423: 5995-00-070-8747, 5340-00-967-7795, 5935-01-142-0351 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10503A?

Key specifications for 10503A: Surface Treatment: ANODIZE; Material Document and Classification: QQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE BODY; Mounting Method: THREAD; End Item Identification: TYPE NO. MTS-1. 22 total characteristics are documented in the Federal Logistics Information System.

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