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Technical Data Sheet
PartsTable / COMPONENT / 71991PC7
71991PC7 ✓ 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

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, hole_diameter: 0.340 INCHES NOMINAL IN, outside_diameter: 6.000 INCHES NOMINAL IN, style_designator: FLAT, material_thickness: 0.062 INCHES NOMINAL IN, bolt_circle_diameter: 5.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-033-2147, 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
71991PC7
NSN: 4820-01-033-2147
FSC: 4820
CAGE: 75545 — LAWLER MANUFACTURING COMPANY, INC. (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
hole_diameter0.340 INCHES NOMINAL IN
outside_diameter6.000 INCHES NOMINAL IN
style_designatorFLAT
bolt_hole_quantity8
material_thickness0.062 INCHES NOMINAL IN
bolt_circle_diameter5.375 INCHES NOMINAL IN
center_hole_diameter0.385 INCHES NOMINAL IN
NSN4820-01-033-2147
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 71991PC7 · 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
•
BOLT CIRCLE DIAMETER: 5.375 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.385 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
•
BOLT HOLE QUANTITY: 8
•
HOLE DIAMETER: 0.340 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE DIAMETER5.375 INCHES NOMINAL IN
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.385 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR
BOLT HOLE QUANTITY8
HOLE DIAMETER0.340 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5806Interchangeable
interchangeable cross-reference
interchangeable
5806FInterchangeable
interchangeable cross-reference
interchangeable
9N9448Interchangeable
interchangeable cross-reference
interchangeable
35702HInterchangeable
interchangeable cross-reference
interchangeable
12155Interchangeable
interchangeable cross-reference
interchangeable
25649Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 71991PC7?
71991PC7 is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 71991PC7?
There are 19 known substitutes for 71991PC7: 5806, 5806F, 9N9448 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 71991PC7?
71991PC7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-033-2147. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026