PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10138Timer,sequential

Cramer Co Division of Chestnut Group Inc · NSN 6645-01-408-4576 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-408-4576 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-408-4576. Primary manufacturer part number: 10138.
Features
  • Timer,sequential — FSC 6645
  • 2 verified cross-references
  • Primary manufacturer: Cramer Co Division of Chestnut Group Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Timer,sequential, cataloged under National Stock Number 6645-01-408-4576, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Cramer Co Division of Chestnut Group Inc. This item has 2 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.

Catalog Facts
Item NameTimer,sequential
FSC / FSG6645 — No Item Name Available (FSG 66)
ManufacturersCramer Co Division of Chestnut Group Inc (CAGE 14907); Quantitech Technologies (uk) Ltd (CAGE U2735)
Technical Specifications
ParameterValue
NSN6645-01-408-4576
Primary Part Number10138
Item NameTimer,sequential
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerCramer Co Division of Chestnut Group Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-355-896310-138 INTERCHANGEABLE
Lock Spring,turnlock Fastener
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5962-00-369-7730 INTERCHANGEABLE
Microcircuit,digital
5136-00-580-731654219 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5305-00-655-6643 INTERCHANGEABLE
Screw,machine
5935-00-740-5903 INTERCHANGEABLE
Socket,plug-in Electronic Compon
6695-00-924-074910138 INTERCHANGEABLE
Transducer,motional Pickup
Celtech Corporation Div Use CAGE 65552 for All Orders
3040-01-214-9085202514 INTERCHANGEABLE
Pawl
Drc Acquisition Inc
5360-01-221-6969 INTERCHANGEABLE
Spring
6210-01-264-3738 INTERCHANGEABLE
Fixture,lighting
5360-01-295-868210560199 INTERCHANGEABLE
Spring Special
General Dynamics Land Systems Canadacorp
Cross-Reference Index
Part NumberManufacturer
10138 Cramer Co Division of Chestnut Group Inc (USA)
TR101HE Quantitech Technologies (uk) Ltd (GBR)
Related Parts
5325-00-355-8963INTERCHANGEABLE
LOCK SPRING,TURNLOCK FASTENER
10-138
5962-00-369-7730INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5136-00-580-7316INTERCHANGEABLE
TAP,THREAD CUTTING
54219
5305-00-655-6643INTERCHANGEABLE
SCREW,MACHINE
5935-00-740-5903INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
6695-00-924-0749INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
10138
3040-01-214-9085INTERCHANGEABLE
PAWL
202514
5360-01-221-6969INTERCHANGEABLE
SPRING
6210-01-264-3738INTERCHANGEABLE
FIXTURE,LIGHTING
5360-01-295-8682INTERCHANGEABLE
SPRING SPECIAL
10560199
5950-01-353-7962INTERCHANGEABLE
REACTOR
G293554-1
5820-01-711-0947INTERCHANGEABLE
CAMERA,TELEVISION
CHDHZ-202-RX

Frequently Asked Questions

What is NSN 6645-01-408-4576?

NSN 6645-01-408-4576 is a Timer,sequential, manufactured by Cramer Co Division of Chestnut Group Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-408-4576?

NSN 6645-01-408-4576 has 2 cross-referenced part numbers: 10138 (Cramer Co Division of Chestnut Group Inc), TR101HE (Quantitech Technologies (uk) Ltd).

What NSN replaces 6645-01-408-4576?

There are 12 known substitutes for 6645-01-408-4576: 5325-00-355-8963, 5962-00-369-7730, 5136-00-580-7316 and 9 more. Verify interchangeability with system specifications before substitution.

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