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Technical Data Sheet
PartsTable / COMPONENT / B-1GS4-A
B-1GS4-A ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

LATCH,SHORTENING MECHANISM,MAIN. Key specifications include material: COPPER ALLOY BODY, bonnet_type: INSIDE SPRING, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, special_features: INCL 2 SLEEVE,TOGGLE LEVER OPENING DEVICE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-038-7758, 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-1GS4-A
NSN: 4820-01-038-7758
FSC: 4820
CAGE: 12623 — WHITEY CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
bonnet_typeINSIDE SPRING
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
special_featuresINCL 2 SLEEVE,TOGGLE LEVER OPENING DEVICE
style_designatorANGLE
thread_directionRIGHT-HAND ALL ENDS
features_providedBONNET PACKING
mounting_facilityBULKHEAD
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceSTEM
NSN4820-01-038-7758
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-1GS4-A · 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
•
MEDIA FOR WHICH DESIGNED: AIR FIRST RESPONSE
•
FLOW CONTROL DEVICE: STEM
•
BONNET ATTACHMENT METHOD: THREADED
•
VALVE OPERATION METHOD: MANUAL
•
MATERIAL: STEEL CORROSION RESISTING STEM
•
MOUNTING FACILITY: BULKHEAD
•
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
•
CONNECTION STYLE: PLAIN (TUBE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
FLOW CONTROL DEVICESTEM
BONNET ATTACHMENT METHODTHREADED
VALVE OPERATION METHODMANUAL
MATERIALSTEEL CORROSION RESISTING STEM
MOUNTING FACILITYBULKHEAD
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
MATERIALCOPPER ALLOY SEAT
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
471535Interchangeable
interchangeable cross-reference
interchangeable
10P50N-SInterchangeable
interchangeable cross-reference
interchangeable
12000597-1Interchangeable
interchangeable cross-reference
interchangeable
5707Interchangeable
interchangeable cross-reference
interchangeable
14U1452PCDD5707Interchangeable
interchangeable cross-reference
interchangeable
M-387Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-1GS4-A?
B-1GS4-A is a LATCH,SHORTENING MECHANISM,MAIN.
What parts can replace B-1GS4-A?
There are 17 known substitutes for B-1GS4-A: 471535, 10P50N-S, 12000597-1 and 14 more. Substitute compatibility should be verified for your specific system.
Is B-1GS4-A still available?
B-1GS4-A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026