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452901 — SEAT ASSEMBLY,HYDRAULIC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

452901: SEAT ASSEMBLY,HYDRAULIC.

The SEAT ASSEMBLY,HYDRAULIC is a the manufacturer industrial component. Key specifications include special_features: N/C S107.1; GE 100A21/CL, end_item_identification: LIGHT,SURGICAL P/N SYM.107.1, emitted_light_characteristic: COLORLESS. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-174-3265, 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
452901
NSN: 4820-00-174-3265
NIINs: 001743265, 004576838, 010343753, 016725614
FSC: 4820 — Valves, Nonpowered
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
special_featuresN/C S107.1; GE 100A21/CL
end_item_identificationLIGHT,SURGICAL P/N SYM.107.1
emitted_light_characteristicCOLORLESS
NSN4820-00-174-3265
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 452901 · 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 LENGTH2.500 INCHES NOMINAL IN
SPECIAL FEATURES1.187 IN. LARGEST OD,6 PORTS UNTHREADED,0.218 IN. DOA OF PORTS,0.562 IN. BORE DIA,STRAIGHT BORE IN
MATERIALSTEEL
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 452901?
452901 is a SEAT ASSEMBLY,HYDRAULIC.
What is the NSN for 452901?
452901 is cataloged in the U.S. Government catalog under NSN 4820-00-174-3265. 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.