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1377-M657 — CARTRIDGE,IMPULSE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1377-M657: CARTRIDGE,IMPULSE.

The CARTRIDGE,IMPULSE is a the manufacturer industrial component. Key specifications include material: STEEL CASE, thread_size: 1.688-18, thread_class: 3A A, body_diameter: 2.000 INCHES NOMINAL IN, terminal_type: PIN, overall_length: 1.645 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 1377-00-168-5802, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1377-M657
NSN: 1377-00-168-5802
FSC: 1377 — Cartridge and Propellant Actuated Devices and Components
CAGE: 99999 — DEPARTMENT OF DEFENSE AMMUNITION CODE ASSIGNED AND PROMULGATED BY CHARACTERISTICS AND TAXOMONY BRANCH DEFENSE LOGISTICS (USA)
SPECIFICATIONS
materialSTEEL CASE
thread_size1.688-18
thread_class3A A
body_diameter2.000 INCHES NOMINAL IN
terminal_typePIN
overall_length1.645 INCHES NOMINAL IN
voltage_in_volts28.0
width_across_flats1.000 INCHES NOMINAL IN
wrenching_facilityINCLUDED
color_coded_featureNOT INCLUDED
dod_ammunition_code1377-M657
case_mounting_threadINCLUDED
NSN1377-00-168-5802
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CARTRIDGE,IMPULSE TITLE COMPONENT PN 1377-M657 MFR CARTRIDGE,IMPULSE
KEY FEATURES
•
WRENCHING FACILITY: INCLUDED
•
BODY DIAMETER: 2.000 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.000 INCHES NOMINAL IN
•
CASE THREADED ELECTRICAL CONNECTION: INCLUDED
•
CONNECTION THREAD SIZE: 0.500-28
•
TERMINAL TYPE: PIN
•
CONNECTION THREAD SERIES: UNEF
•
PACKAGE MODEL NUMBER: NONE
TECHNICAL CHARACTERISTICS
WRENCHING FACILITYINCLUDED
BODY DIAMETER2.000 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
CASE THREADED ELECTRICAL CONNECTIONINCLUDED
CONNECTION THREAD SIZE0.500-28
TERMINAL TYPEPIN
CONNECTION THREAD SERIESUNEF
PACKAGE MODEL NUMBERNONE
DOT PROPER SHIPPING NAMECARTRIDGES, POWER DEVICE
DOT IDENTIFICATION NUMBERUN0323
SUBSTITUTES & CROSS-REFERENCES 1
300051-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required (G)
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FREQUENTLY ASKED QUESTIONS
What is 1377-M657?
1377-M657 is a CARTRIDGE,IMPULSE.
What parts can replace 1377-M657?
There is 1 known substitute for 1377-M657: 300051-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 1377-M657?
1377-M657 is cataloged in the U.S. Government catalog under NSN 1377-00-168-5802. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.