PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2421Heater,thermal Release

Joslyn Clark Controls, Llc · NSN 5999-01-335-5014 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-335-5014 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-335-5014. Primary manufacturer part number: 2421.
Features
  • Heater,thermal Release — FSC 5999
  • 4 verified cross-references
  • Primary manufacturer: Joslyn Clark Controls, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,thermal Release, cataloged under National Stock Number 5999-01-335-5014, 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 Joslyn Clark Controls, Llc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-01-335-5014
Primary Part Number2421
Item NameHeater,thermal Release
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerJoslyn Clark Controls, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-01-176-9834282 SUCCESSOR
Braid,wire
Omega Wire, Inc. Dba Bare Wire Div Div Continental Cordage
5340-00-075-27382421 INTERCHANGEABLE
Bolt,mortise
Edro Corporation, the Dba Edro Corp
5360-00-205-45902421 INTERCHANGEABLE
Spring,helical,extension
Telemechanics Inc
3030-00-267-6780150B1/8X1/32X18 INTERCHANGEABLE
Belting,flat
Contitech Usa, Inc Dba Veyance Technologies
2930-00-831-389326224-30 INTERCHANGEABLE
Control Assembly Ra
Stewart & Stevenson Power Products Llc
6930-00-925-4490242-1 INTERCHANGEABLE
Indicator,simulator
Jewell Instruments Llc
5935-01-052-92122421 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
6750-01-083-1270 INTERCHANGEABLE
Paper,copying,diazo Process
4820-01-147-1167 INTERCHANGEABLE
Seat,valve
5220-01-275-974611826 INTERCHANGEABLE
Gage,comparator,air
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
Cross-Reference Index
Part NumberManufacturer
77C723487-2 Lockheed Martin Corporation Div Rms (USA)
77C723487 Lockheed Martin Corporation Div Rms (USA)
2421 PRIMARY Joslyn Clark Controls, Llc (USA)
77C723487P002 Lockheed Martin Corporation Div Rms (USA)
Related Parts
6145-01-176-9834SUCCESSOR
BRAID,WIRE
282
5340-00-075-2738INTERCHANGEABLE
BOLT,MORTISE
2421
5360-00-205-4590INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2421
3030-00-267-6780INTERCHANGEABLE
BELTING,FLAT
150B1/8X1/32X18
2930-00-831-3893INTERCHANGEABLE
CONTROL ASSEMBLY RA
26224-30
6930-00-925-4490INTERCHANGEABLE
INDICATOR,SIMULATOR
242-1
5935-01-052-9212INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2421
6750-01-083-1270INTERCHANGEABLE
PAPER,COPYING,DIAZO PROCESS
4820-01-147-1167INTERCHANGEABLE
SEAT,VALVE
5220-01-275-9746INTERCHANGEABLE
GAGE,COMPARATOR,AIR
11826
3120-01-281-9094INTERCHANGEABLE
BEARING,SLEEVE
24-21
5999-01-309-8943INTERCHANGEABLE
HEATER,THERMAL RELEASE
2455

Frequently Asked Questions

What is NSN 5999-01-335-5014?

NSN 5999-01-335-5014 is a Heater,thermal Release, manufactured by Joslyn Clark Controls, Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-335-5014?

NSN 5999-01-335-5014 has 4 cross-referenced part numbers: 77C723487-2 (Lockheed Martin Corporation Div Rms), 77C723487 (Lockheed Martin Corporation Div Rms), 2421 (Joslyn Clark Controls, Llc), 77C723487P002 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5999-01-335-5014?

There are 12 known substitutes for 5999-01-335-5014: 6145-01-176-9834, 5340-00-075-2738, 5360-00-205-4590 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2421?

Key specifications for 2421: End Item Identification: AN/FPS-117 V3 PEACE SHIELD; End Item Identification: AN/FPS-117 V3 PEACE SHIELD. 2 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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