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21344-001 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21344-001: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include flange_width: 1.750 INCHES AND 2.250 INCHES IN, body_material: ALUMINUM ALLOY, flange_length: 1.770 INCHES AND 2.250 INCHES IN, connection_type: FLANGE, RECTANGULAR W/HOLES, special_features: PORT "C" 0.312 IN. DIA; PORTS "P" AND "R" 0.876 IN.

DIA IN, flange_face_design: PLAIN. This part is cataloged in the U.S. Government catalog under NSN 4820-01-435-4920, 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
21344-001
NSN: 4820-01-435-4920
FSC: 4820 — Valves, Nonpowered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
flange_width1.750 INCHES AND 2.250 INCHES IN
body_materialALUMINUM ALLOY
flange_length1.770 INCHES AND 2.250 INCHES IN
spool_quantity1
connection_typeFLANGE, RECTANGULAR W/HOLES
special_featuresPORT "C" 0.312 IN. DIA; PORTS "P" AND "R" 0.876 IN. DIA IN
bolt_hole_quantity4
flange_face_designPLAIN
flow_pattern_quantity3
valve_operation_methodAUTOMATIC AND MANUAL
end_connection_quantity3
end_item_identificationNAVY WSDC JGN,SEAWOLF CLASS SSN
NSN4820-01-435-4920
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21344-001 · 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
•
FLANGE FACE DESIGN: PLAIN
•
CONNECTION TYPE: FLANGE, RECTANGULAR W/HOLES
•
END CONNECTION QUANTITY: 3
•
SPOOL QUANTITY: 1
•
BODY MATERIAL: ALUMINUM ALLOY
•
BOLT HOLE QUANTITY: 4
•
FLANGE WIDTH: 1.750 INCHES AND 2.250 INCHES IN
TECHNICAL CHARACTERISTICS
FLANGE FACE DESIGNPLAIN
CONNECTION TYPEFLANGE, RECTANGULAR W/HOLES
END CONNECTION QUANTITY3
SPOOL QUANTITY1
BODY MATERIALALUMINUM ALLOY
BOLT HOLE QUANTITY4
SPECIAL FEATURESPORT "C" 0.312 IN. DIA; PORTS "P" AND "R" 0.876 IN. DIA IN
FLANGE WIDTH1.750 INCHES AND 2.250 INCHES IN
END ITEM IDENTIFICATIONNAVY WSDC JGN,SEAWOLF CLASS SSN
VALVE DISCHARGE FLOW RATE2.0 GALLONS PER MINUTE
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
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 21344-001?
21344-001 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What is the NSN for 21344-001?
21344-001 is cataloged in the U.S. Government catalog under NSN 4820-01-435-4920. 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.