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530981 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

530981: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include end_item_identification: U/O TF33-PW-102 ENG; E/I KC135 ACFT. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-161-0476, 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
530981
NSN: 4810-01-161-0476
FSC: 4810 — Valves, Powered
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationU/O TF33-PW-102 ENG; E/I KC135 ACFT
NSN4810-01-161-0476
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 530981 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESCLOSED AIR VALVE LEAKAGE 3.5 LB PER MIN. MAX, UPSTREAM PRESSURE 50 PSIG, DOWNSTREAM PRESS ATMOSPHERIC, AIR INLET TEMP 70 DEG FEH, OPER TEMP 70 DEG TO 400 DEG FEH; MANUFACTURERS SUGGESTED NAME IS VALVE ASSY, BLEED LBS
END ITEM IDENTIFICATIONU/O TF33-PW-102 ENG; E/I KC135 ACFT
SUBSTITUTES & CROSS-REFERENCES 1
804337Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 530981?
530981 is a VALVE,BUTTERFLY.
What parts can replace 530981?
There is 1 known substitute for 530981: 804337. Substitute compatibility should be verified for your specific system.
What is the NSN for 530981?
530981 is cataloged in the U.S. Government catalog under NSN 4810-01-161-0476. 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.