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LBB 31131 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

LBB 31131: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include nominal_length: 2.31 INCHES ALL ENDS IN, special_features: 1/4 INCH COMPRESSION OUTLET PORT; 5 MICRON RATING; 316 STAINLESS STEEL BODY MATERIAL IN, nominal_thread_size: 0.25 INCHES FIRST END IN, thread_series_designator: NPT FIRST END, part_name_assigned_by_controlling_agency: INLINE FILTER. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-724-6549, 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
LBB 31131
NSN: 4820-01-724-6549
FSC: 4820 — Valves, Nonpowered
CAGE: U4265 — L. B. BENTLEY LIMITED (GBR)
SPECIFICATIONS
nominal_length2.31 INCHES ALL ENDS IN
special_features1/4 INCH COMPRESSION OUTLET PORT; 5 MICRON RATING; 316 STAINLESS STEEL BODY MATERIAL IN
nominal_thread_size0.25 INCHES FIRST END IN
thread_series_designatorNPT FIRST END
part_name_assigned_by_controlling_agencyINLINE FILTER
NSN4820-01-724-6549
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: LBB 31131 · 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 LENGTH: 2.31 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.25 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH2.31 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.25 INCHES FIRST END IN
SPECIAL FEATURES1/4 INCH COMPRESSION OUTLET PORT; 5 MICRON RATING; 316 STAINLESS STEEL BODY MATERIAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYINLINE FILTER
THREAD SERIES DESIGNATORNPT FIRST END
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is LBB 31131?
LBB 31131 is a VALVE,CHECK.
What is the NSN for LBB 31131?
LBB 31131 is cataloged in the U.S. Government catalog under NSN 4820-01-724-6549. This indicates validated use in U.S. government and defense supply chains.
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