PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1258-1Initiator,cartridge Actuated

Rockwell Collins Inc · NSN 1377-01-346-2215 · FSC 1377 · No Item Name Available
Verified by PartsTable
NSN 1377-01-346-2215 — this item is cataloged by the U.S. Government under National Stock Number 1377-01-346-2215. Primary manufacturer part number: 1258-1.
Features
  • Initiator,cartridge Actuated — FSC 1377
  • Cartridge Design Type: TIME DELAY
  • Dod Ammunition Code: 1377-MT35
  • Net Explosive Weight: 0.0033 STORAGE POUNDS AND 0.0033 TRANSPORTATION POUNDS
  • Delay Time in Seconds: 0.4
  • Detonation Initiation Method: GAS
  • Hazardous Material Classification Code: 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION
  • Dot Registration Code: EX1988080731A
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Initiator,cartridge Actuated, cataloged under National Stock Number 1377-01-346-2215, is classified within Federal Supply Class 1377 (No Item Name Available) of the Ammunition and Explosives group. The primary manufacturer of record is Rockwell Collins Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1377-01-346-2215
Primary Part Number1258-1
Item NameInitiator,cartridge Actuated
FSC / FSG1377 / 13 — No Item Name Available
ManufacturerRockwell Collins Inc
StatusACTIVE
Cartridge Design TypeTIME DELAY
Dod Ammunition Code1377-MT35
Net Explosive Weight0.0033 STORAGE POUNDS AND 0.0033 TRANSPORTATION POUNDS
Delay Time in Seconds0.4
Detonation Initiation MethodGAS
Hazardous Material Classification Code1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION
Dot Registration CodeEX1988080731A
Dot Hazard Class/division1.4
CartridgeINCLUDED
Criticality Code JustificationEXWT
Dot Proper Shipping NameCARTRIDGES, POWER DEVICE
Dot Identification NumberUN0276
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
1560-00-122-922512581 INTERCHANGEABLE
Fitting,spar Jury S
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
6515-00-137-63456345 INTERCHANGEABLE
Plug,ear
Access: Supports for Living Inc. Dba Access Supports for Living Inc
5133-00-227-5988 INTERCHANGEABLE
Drill,twist
6615-00-508-302015713-1A1 INTERCHANGEABLE
Controller,flight,automatic Pilo
Honeywell Intl Inc Defense Avionics Systems
6220-00-758-818312581 INTERCHANGEABLE
Base Reflector,light
Grimes Aerospace Company
5970-00-840-27711258-1 INTERCHANGEABLE
Insulation Sleeving,electrical
Systems Protection Group Us Llc
5330-01-013-757812581 INTERCHANGEABLE
Seal,plain Encased
Dana Commercial Vehicle Products, Llc
3455-01-330-075012581 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
4330-01-369-866312581 INTERCHANGEABLE
Filter Element,fluid
Gelman Sciences Inc
1005-01-645-342412581 INTERCHANGEABLE
Carrier,bolt
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
1377-MT35 Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics (USA)
1258-1 PRIMARY Rockwell Collins Inc (USA)
20Q2017-1 Lockheed Martin Corporation (USA)
1258-1 Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc. (USA)
Related Parts
1560-00-122-9225INTERCHANGEABLE
FITTING,SPAR JURY S
12581
6515-00-137-6345INTERCHANGEABLE
PLUG,EAR
6345
5133-00-227-5988INTERCHANGEABLE
DRILL,TWIST
6615-00-508-3020INTERCHANGEABLE
CONTROLLER,FLIGHT,AUTOMATIC PILO
15713-1A1
6220-00-758-8183INTERCHANGEABLE
BASE REFLECTOR,LIGHT
12581
5970-00-840-2771INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
1258-1
5330-01-013-7578INTERCHANGEABLE
SEAL,PLAIN ENCASED
12581
3455-01-330-0750INTERCHANGEABLE
CUTTER,MILLING,ANGLE
12581
4330-01-369-8663INTERCHANGEABLE
FILTER ELEMENT,FLUID
12581
1005-01-645-3424INTERCHANGEABLE
CARRIER,BOLT
12581

Frequently Asked Questions

What is NSN 1377-01-346-2215?

NSN 1377-01-346-2215 is a Initiator,cartridge Actuated, manufactured by Rockwell Collins Inc, classified under FSC 1377 (No Item Name Available). Status: active.

What are the part numbers for NSN 1377-01-346-2215?

NSN 1377-01-346-2215 has 4 cross-referenced part numbers: 1377-MT35 (Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics), 1258-1 (Rockwell Collins Inc), 20Q2017-1 (Lockheed Martin Corporation), 1258-1 (Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc.).

What NSN replaces 1377-01-346-2215?

There are 10 known substitutes for 1377-01-346-2215: 1560-00-122-9225, 6515-00-137-6345, 5133-00-227-5988 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1258-1?

Key specifications for 1258-1: Cartridge Design Type: TIME DELAY; Dod Ammunition Code: 1377-MT35; Net Explosive Weight: 0.0033 STORAGE POUNDS AND 0.0033 TRANSPORTATION POUNDS; Delay Time in Seconds: 0.4. 13 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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