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4457259 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4457259: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-01-283-9673, 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
4457259
NSN: 4820-01-283-9673
NIINs: 012839673, 013166417
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES STEEL PER QQ-S-763,CL 304,COND O/A;1.500 IN.LG;0.500 IN. OD;ONE END BORED 0.188 IN.DIA W/CROSS DRILLED HOLE OF SAME DIA;OTHER END BORED 0.376 IN. DIA BY 1.125 IN. DP IN
NSN4820-01-283-9673
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4457259 · 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
•
BODY OUTSIDE DIAMETER: 0.499 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 0.388 INCHES NOMINAL IN
•
SEAT RADIUS: 0.062 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.750 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.499 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER0.388 INCHES NOMINAL IN
SEAT RADIUS0.062 INCHES NOMINAL IN
END ITEM IDENTIFICATIONU.2.NAVY SSN688 CLASS SUBMARINE NO. 1 AND 2 PERISCOPE FAIRING HOIST CYLINDER
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SUBSTITUTES & CROSS-REFERENCES 9
5489289Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6440215-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2070-28Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
4457259 PIECE 29Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5489289 ITEM 8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
H8832408Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 4457259?
4457259 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 4457259?
There are 9 known substitutes for 4457259: 5489289, 6440215-8, 2070-28 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4457259?
4457259 is cataloged in the U.S. Government catalog under NSN 4820-01-283-9673. 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.