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57K1021 — ACTUATOR,HYDRAULIC-PNEUMATIC,ROT

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

57K1021: ACTUATOR,HYDRAULIC-PNEUMATIC,ROT.

ACTUATOR,HYDRAULIC-PNEUMATIC,ROT. Key specifications include special_features: SHIPPING CONTAINER PART NUMBER 12379370, NSN 2590-01-339-0098, end_item_identification: 2550-00-808-7100 M9 ACE FULL TRACKED ARMORED COMBAT VEHICLE, shaft_rotation_direction: CLOCKWISE AND COUNTERCLOCKWISE. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-337-8962, 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
57K1021
NSN: 4810-01-337-8962
FSC: 4810 — Valves, Powered
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
special_featuresSHIPPING CONTAINER PART NUMBER 12379370, NSN 2590-01-339-0098
end_item_identification2550-00-808-7100 M9 ACE FULL TRACKED ARMORED COMBAT VEHICLE
shaft_rotation_directionCLOCKWISE AND COUNTERCLOCKWISE
NSN4810-01-337-8962
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 57K1021 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHAFT ROTATION DIRECTION: CLOCKWISE AND COUNTERCLOCKWISE
TECHNICAL CHARACTERISTICS
SHAFT ROTATION DIRECTIONCLOCKWISE AND COUNTERCLOCKWISE
SPECIAL FEATURESSHIPPING CONTAINER PART NUMBER 12379370, NSN 2590-01-339-0098
END ITEM IDENTIFICATION2550-00-808-7100 M9 ACE FULL TRACKED ARMORED COMBAT VEHICLE
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 57K1021?
57K1021 is a ACTUATOR,HYDRAULIC-PNEUMATIC,ROT.
What is the NSN for 57K1021?
57K1021 is cataloged in the U.S. Government catalog under NSN 4810-01-337-8962. 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.