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21128-1004 — PRINTED WIRING BOARD

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21128-1004: PRINTED WIRING BOARD.

The PRINTED WIRING BOARD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416, overall_length: 3.890 INCHES NOMINAL IN, outside_diameter: 0.880 INCHES NOMINAL IN, special_features: E/I 1905-01-154-1191, features_provided: INTEGRAL STEM, nominal_thread_size: 0.125 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-400-3189, 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
21128-1004
NSN: 4810-01-400-3189
FSC: 4810 — Valves, Powered
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 416
overall_length3.890 INCHES NOMINAL IN
outside_diameter0.880 INCHES NOMINAL IN
special_featuresE/I 1905-01-154-1191
features_providedINTEGRAL STEM
nominal_thread_size0.125 INCHES IN
end_item_identificationVALVE ASSEMBLY;SARGENT CONTROLS;MODEL 21128-001;W/S CODE JG
valve_design_control_activity78062
valve_type_for_which_designedDIRECTIONAL CONTROL LINEAR
screw_thread_series_designatorNPT
material_document_and_classificationASTM A582, TYPE 416, COND A FED SPEC SINGLE MATERIAL RESPONSE
valve_model_number_for_which_designed21128-001
NSN4810-01-400-3189
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21128-1004 · 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
SUBSTITUTES & CROSS-REFERENCES 2
21128-19Reference document
Same NSN cross-reference
Reference document — Secondary reference
21128Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21128-1004?
21128-1004 is a PRINTED WIRING BOARD.
What parts can replace 21128-1004?
There are 2 known substitutes for 21128-1004: 21128-19, 21128. Substitute compatibility should be verified for your specific system.
What is the NSN for 21128-1004?
21128-1004 is cataloged in the U.S. Government catalog under NSN 4810-01-400-3189. 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.