PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

71998Collar,locking

Telemechanics Inc · NSN 5815-00-126-8641 · FSC 5815 · No Item Name Available
Verified by PartsTable
NSN 5815-00-126-8641 — this item is cataloged by the U.S. Government under National Stock Number 5815-00-126-8641. Primary manufacturer part number: 71998.
Features
  • Collar,locking — FSC 5815
  • 3 verified cross-references
  • Primary manufacturer: Telemechanics Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Collar,locking, cataloged under National Stock Number 5815-00-126-8641, is classified within Federal Supply Class 5815 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Telemechanics Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCollar,locking
FSC / FSG5815 — No Item Name Available (FSG 58)
ManufacturersTelemechanics Inc (CAGE 57712); American Telephone and Telegraph Co (CAGE 64959); At and T Corp (CAGE 70408)
Technical Specifications
ParameterValue
NSN5815-00-126-8641
Primary Part Number71998
Item NameCollar,locking
FSC / FSG5815 / 58 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3040-00-138-861371998 INTERCHANGEABLE
Connecting Link,rigid
L3harris Technologies, Inc Div Space & Airborne Systems
1650-00-306-295971998 INTERCHANGEABLE
Adapter,hydraulic M
Northrop Grumman Systems Corporation
5950-01-069-9395 INTERCHANGEABLE
Coil,radio Frequency
4820-01-221-21216608 INTERCHANGEABLE
Stem,fluid Valve
Lawler Manufacturing Company, Inc.
6150-01-288-484310-4472 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Kidde Technologies, Inc Div Kidde Aerospace and Defense
4820-01-478-36264040-201 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
71998 PRIMARY Telemechanics Inc (USA)
71998 American Telephone and Telegraph Co (USA)
71998 At and T Corp (USA)
Related Parts
3040-00-138-8613INTERCHANGEABLE
CONNECTING LINK,RIGID
71998
1650-00-306-2959INTERCHANGEABLE
ADAPTER,HYDRAULIC M
71998
5950-01-069-9395INTERCHANGEABLE
COIL,RADIO FREQUENCY
4820-01-221-2121INTERCHANGEABLE
STEM,FLUID VALVE
6608
6150-01-288-4843INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
10-4472
4820-01-478-3626INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
4040-201

Frequently Asked Questions

What is NSN 5815-00-126-8641?

NSN 5815-00-126-8641 is a Collar,locking, manufactured by Telemechanics Inc, classified under FSC 5815 (No Item Name Available). Status: active.

What are the part numbers for NSN 5815-00-126-8641?

NSN 5815-00-126-8641 has 3 cross-referenced part numbers: 71998 (Telemechanics Inc), 71998 (American Telephone and Telegraph Co), 71998 (At and T Corp).

What NSN replaces 5815-00-126-8641?

There are 6 known substitutes for 5815-00-126-8641: 3040-00-138-8613, 1650-00-306-2959, 5950-01-069-9395 and 3 more. Verify interchangeability with system specifications before substitution.

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