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B-46791 R8 — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B-46791 R8: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, nominal_thread_size: 0.250 INCHES ALL ENDS IN, valve_operation_method: AUTOMATIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-391-3919, 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
B-46791 R8
NSN: 4820-01-391-3919
FSC: 4820 — Valves, Nonpowered
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
nominal_thread_size0.250 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
NSN4820-01-391-3919
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-46791 R8 · 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 THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
MATERIAL: STEEL CORROSION RESISTING BODY
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
MATERIALSTEEL CORROSION RESISTING BODY
VALVE OPERATION METHODAUTOMATIC
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 2
SW-701 1-4INSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SW-701 1-4IN F-46909Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 B-46791 R8?
B-46791 R8 is a VALVE,CHECK.
What parts can replace B-46791 R8?
There are 2 known substitutes for B-46791 R8: SW-701 1-4IN, SW-701 1-4IN F-46909. Substitute compatibility should be verified for your specific system.
What is the NSN for B-46791 R8?
B-46791 R8 is cataloged in the U.S. Government catalog under NSN 4820-01-391-3919. 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.