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12321902 — SLEEVE,DIRECTIONAL CONTROL LINEA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

12321902: SLEEVE,DIRECTIONAL CONTROL LINEA.

SLEEVE,DIRECTIONAL CONTROL LINEA. Key specifications include material: STEEL, overall_length: 3.790 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN, special_features: MATTDSTEEL ALLOY CMPSN 8620 OR SAE 8620 SPEC ASTM A331 OR, end_item_identification: 2520-01-655-8112, part_name_assigned_by_controlling_agency: SLEEVE,SHUTTLE VALVE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-657-5609, 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
12321902
NSN: 4820-01-657-5609
FSC: 4820 — Valves, Nonpowered
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
overall_length3.790 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN
special_featuresMATTDSTEEL ALLOY CMPSN 8620 OR SAE 8620 SPEC ASTM A331 OR
end_item_identification2520-01-655-8112
part_name_assigned_by_controlling_agencySLEEVE,SHUTTLE VALVE
NSN4820-01-657-5609
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 12321902 · 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
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL LENGTH3.790 INCHES MINIMUM AND 3.794 INCHES MAXIMUM IN
SPECIAL FEATURESMATTDSTEEL ALLOY CMPSN 8620 OR SAE 8620 SPEC ASTM A331 OR
PART NAME ASSIGNED BY CONTROLLING AGENCYSLEEVE,SHUTTLE VALVE
END ITEM IDENTIFICATION2520-01-655-8112
MATERIALSTEEL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12321902?
12321902 is a SLEEVE,DIRECTIONAL CONTROL LINEA.
What is the NSN for 12321902?
12321902 is cataloged in the U.S. Government catalog under NSN 4820-01-657-5609. 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.