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Technical Data Sheet
PartsTable / COMPONENT / 1767-D PC 18
1767-D PC 18 ✓ 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

VALVE,RELIEF,PRESSURE AND TEMPER. Key specifications include material: COPPER ALLOY, overall_width: 1.000 INCHES NOMINAL IN, overall_length: 3.812 INCHES NOMINAL IN, overall_diameter: 1.000 INCHES NOMINAL IN, special_features: NHA VALVE TEMP RELEASE, end_item_identification: W/S NIMITZ CLASS CVN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-469-7664, 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
1767-D PC 18
NSN: 4810-01-469-7664
FSC: 4810
CAGE: 75545 — LAWLER MANUFACTURING COMPANY, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_width1.000 INCHES NOMINAL IN
overall_length3.812 INCHES NOMINAL IN
overall_diameter1.000 INCHES NOMINAL IN
special_featuresNHA VALVE TEMP RELEASE
end_item_identificationW/S NIMITZ CLASS CVN
specification/standard_dataQQB-639 GOVERNMENT STANDARD
thread_size_and_series/type_designator0.250-28 UNS
NSN4810-01-469-7664
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1767-D PC 18 · 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
•
MATERIAL: COPPER ALLOY
•
SPECIFICATION/STANDARD DATA: QQB-639 GOVERNMENT STANDARD
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.250-28 UNS
•
OVERALL DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
SPECIFICATION/STANDARD DATAQQB-639 GOVERNMENT STANDARD
OVERALL WIDTH1.000 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.250-28 UNS
SPECIAL FEATURESNHA VALVE TEMP RELEASE
OVERALL DIAMETER1.000 INCHES NOMINAL IN
OVERALL LENGTH3.812 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S NIMITZ CLASS CVN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
3963Interchangeable
interchangeable cross-reference
interchangeable
8MAX8UFSInterchangeable
interchangeable cross-reference
interchangeable
4730003594709Interchangeable
interchangeable cross-reference
interchangeable
07-33F4Interchangeable
interchangeable cross-reference
interchangeable
C7931-832-3BInterchangeable
interchangeable cross-reference
interchangeable
200037516-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1767-D PC 18?
1767-D PC 18 is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 1767-D PC 18?
There are 23 known substitutes for 1767-D PC 18: 3963, 8MAX8UFS, 4730003594709 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1767-D PC 18?
1767-D PC 18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-469-7664. 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