PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1257-2Cartridge,impulse

Rockwell Collins Inc · NSN 1377-01-260-6410 · FSC 1377 · No Item Name Available
Verified by PartsTable
NSN 1377-01-260-6410 — this item is cataloged by the U.S. Government under National Stock Number 1377-01-260-6410. Primary manufacturer part number: 1257-2.
Features
  • Cartridge,impulse — FSC 1377
  • Body Diameter: 0.820 INCHES NOMINAL IN
  • Percussion Detonation Type: CENTER FIRE
  • Rim: NOT INCLUDED
  • Charged End Diameter: 0.650 INCHES NOMINAL IN
  • Dot Hazard Class/division: 1.4
  • Dot Warning Label Code: 1.4C
  • Dod Ammunition Code: 1377-MT84
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cartridge,impulse, cataloged under National Stock Number 1377-01-260-6410, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1377-01-260-6410
Primary Part Number1257-2
Item NameCartridge,impulse
FSC / FSG1377 / 13 — No Item Name Available
ManufacturerRockwell Collins Inc
StatusACTIVE
Body Diameter0.820 INCHES NOMINAL IN
Percussion Detonation TypeCENTER FIRE
RimNOT INCLUDED
Charged End Diameter0.650 INCHES NOMINAL IN
Dot Hazard Class/division1.4
Dot Warning Label Code1.4C
Dod Ammunition Code1377-MT84
Case Mounting ThreadNOT INCLUDED
Color Coded FeatureNOT INCLUDED
Hazardous Material Classification Code1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION
Integral Cutting PunchNOT INCLUDED
Dot Identification NumberUN0276
Net Explosive Weight0.0044 STORAGE POUNDS AND 0.0044 TRANSPORTATION POUNDS
Wrenching FacilityNOT INCLUDED
Case Threaded Electrical ConnectionNOT INCLUDED
Dot Registration CodeEX1988070535
Criticality Code JustificationFEAT
Detonation Initiation MethodPERCUSSION
Dot Proper Shipping NameCARTRIDGES, POWER DEVICE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5985-00-340-1616 INTERCHANGEABLE
Line,radio Frequency Transmissio
2520-00-371-74635-2-379 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Corp Spicer Transmission Div
5950-01-138-357412572 INTERCHANGEABLE
Transformer,radio Frequency
Standex Electronics, Inc.
5310-01-395-7760934012 INTERCHANGEABLE
Nut,plain,hexagon
Karl Senner, L.l.c. Dba Karl Senner Inc
5310-01-602-906312572 INTERCHANGEABLE
Washer,flat
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
1257-2 PRIMARY Rockwell Collins Inc (USA)
1257-2 Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc. (USA)
1377-MT84 Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics (USA)
Related Parts
5985-00-340-1616INTERCHANGEABLE
LINE,RADIO FREQUENCY TRANSMISSIO
2520-00-371-7463INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
5-2-379
5950-01-138-3574INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
12572
5310-01-395-7760INTERCHANGEABLE
NUT,PLAIN,HEXAGON
934012
5310-01-602-9063INTERCHANGEABLE
WASHER,FLAT
12572

Frequently Asked Questions

What is NSN 1377-01-260-6410?

NSN 1377-01-260-6410 is a Cartridge,impulse, manufactured by Rockwell Collins Inc, classified under FSC 1377 (No Item Name Available). Status: active.

What are the part numbers for NSN 1377-01-260-6410?

NSN 1377-01-260-6410 has 3 cross-referenced part numbers: 1257-2 (Rockwell Collins Inc), 1257-2 (Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc.), 1377-MT84 (Department of Defense Ammunition Code Assigned and Promulgated by Characteristics and Taxomony Branch Defense Logistics).

What NSN replaces 1377-01-260-6410?

There are 5 known substitutes for 1377-01-260-6410: 5985-00-340-1616, 2520-00-371-7463, 5950-01-138-3574 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1257-2?

Key specifications for 1257-2: Body Diameter: 0.820 INCHES NOMINAL IN; Percussion Detonation Type: CENTER FIRE; Rim: NOT INCLUDED; Charged End Diameter: 0.650 INCHES NOMINAL IN. 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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