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1B4238 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1B4238: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include end_item_identification: C-17A AIRCRAFT A, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY SOURCE CONTROL DRAWING. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-343-3948, 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
1B4238
NSN: 4820-01-343-3948
NIINs: 013433948, 016969966
FSC: 4820 — Valves, Nonpowered
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationC-17A AIRCRAFT A
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY SOURCE CONTROL DRAWING
NSN4820-01-343-3948
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1B4238 · 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 1
10P22-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1B4238?
1B4238 is a VALVE,SAFETY RELIEF.
What parts can replace 1B4238?
There is 1 known substitute for 1B4238: 10P22-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B4238?
1B4238 is cataloged in the U.S. Government catalog under NSN 4820-01-343-3948. This indicates validated use in U.S. government and defense supply chains.
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