PartsTable
Technical Data Sheet
Download PDF

57K4991 — GUNNER CONTROL UNIT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

57K4991: GUNNER CONTROL UNIT.

The GUNNER CONTROL UNIT is a the manufacturer industrial component. Key specifications include end_item_identification: TANK,ABRAMS,M1A1 UNIQUE (FOV). This part is cataloged in the U.S.

Government catalog under NSN 1220-01-551-7976, 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
57K4991
NSN: 1220-01-551-7976
FSC: 1220 — Fire Control Computing Sights and Devices
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
end_item_identificationTANK,ABRAMS,M1A1 UNIQUE (FOV)
NSN1220-01-551-7976
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GUNNER CONTROL UNIT TITLE COMPONENT PN 57K4991 MFR GUNNER CONTROL UNIT
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONTANK,ABRAMS,M1A1 UNIQUE (FOV)
OTHER ITEMS IN FSC 1220 — Fire Control Computing Sights and Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1220-00-514-1321 1220-00-783-7042 1220-00-911-3949 1220-00-930-8642 1220-01-077-1336 1220-01-079-0203 1220-01-079-0609 1220-01-079-0610
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — mutilation + specific procedure
Ready to buy 57K4991?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 57K4991?
57K4991 is a GUNNER CONTROL UNIT.
What is the NSN for 57K4991?
57K4991 is cataloged in the U.S. Government catalog under NSN 1220-01-551-7976. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 57K4991

✓ 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.