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PartsTable / COMPONENT / 1767-D PC 4
1767-D PC 4 ✓ 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_length: 1.500 INCHES NOMINAL IN, special_features: NHA VALVE TEMP RELEASE, end_item_identification: W/S NIMITZ CLASS CVN, specification/standard_data: QQ-B-639 GOVERNMENT STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-469-7315, 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 4
NSN: 4820-01-469-7315
FSC: 4820
CAGE: 75545 — LAWLER MANUFACTURING COMPANY, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length1.500 INCHES NOMINAL IN
special_featuresNHA VALVE TEMP RELEASE
end_item_identificationW/S NIMITZ CLASS CVN
specification/standard_dataQQ-B-639 GOVERNMENT STANDARD
NSN4820-01-469-7315
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1767-D PC 4 · 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: QQ-B-639 GOVERNMENT STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
OVERALL LENGTH1.500 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATAQQ-B-639 GOVERNMENT STANDARD
SPECIAL FEATURESNHA VALVE TEMP RELEASE
END ITEM IDENTIFICATIONW/S NIMITZ CLASS CVN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2948Interchangeable
interchangeable cross-reference
interchangeable
AMS-R-25988-2.948Interchangeable
interchangeable cross-reference
interchangeable
2.948Interchangeable
interchangeable cross-reference
interchangeable
B58108Interchangeable
interchangeable cross-reference
interchangeable
12A43Interchangeable
interchangeable cross-reference
interchangeable
580R021H02Interchangeable
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 4?
1767-D PC 4 is a VALVE,RELIEF,PRESSURE AND TEMPER.
What parts can replace 1767-D PC 4?
There are 13 known substitutes for 1767-D PC 4: 2948, AMS-R-25988-2.948, 2.948 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1767-D PC 4?
1767-D PC 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-469-7315. 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