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9920L51M — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

9920L51M: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET ALL ENDS, end_item_identification: NIMITZ CLASS CVN, adjustable_pressure_range: +75.0 TO 110.0 POUNDS PER SQUARE INCH LBS, nominal_pipe_size_accommodated: 0.250 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-152-2490, 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
9920L51M
NSN: 4820-01-152-2490
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET ALL ENDS
end_item_identificationNIMITZ CLASS CVN
adjustable_pressure_range+75.0 TO 110.0 POUNDS PER SQUARE INCH LBS
nominal_pipe_size_accommodated0.250 INCHES ALL ENDS IN
NSN4820-01-152-2490
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9920L51M · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
CONNECTION STYLE: SOCKET ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
ADJUSTABLE PRESSURE RANGE: +75.0 TO 110.0 POUNDS PER SQUARE INCH LBS
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS IN
CONNECTION STYLESOCKET ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
ADJUSTABLE PRESSURE RANGE+75.0 TO 110.0 POUNDS PER SQUARE INCH LBS
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
MATERIALCOPPER ALLOY BODY
MATERIALNICKEL ALLOY STEM
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 3
E9920L51M 1/4INReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0992001S0076Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9920-1/4IN-76T90PSI SBUReference 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 9920L51M?
9920L51M is a VALVE,SAFETY RELIEF.
What parts can replace 9920L51M?
There are 3 known substitutes for 9920L51M: E9920L51M 1/4IN, 0992001S0076, 9920-1/4IN-76T90PSI SBU. Substitute compatibility should be verified for your specific system.
What is the NSN for 9920L51M?
9920L51M is cataloged in the U.S. Government catalog under NSN 4820-01-152-2490. This indicates validated use in U.S. government and defense supply chains.
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