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Technical Data Sheet
PartsTable / COMPONENT / 4PQ
4PQ ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

SHIELD,SOCKET,PLUG-IN ELECTRONIC. Key specifications include depth: 3.000 INCHES NOMINAL IN, shape: RECTANGULAR, width: 9.250 INCHES NOMINAL IN, length: 12.500 INCHES NOMINAL IN, bearings: NOT INCLUDED, material: PLASTIC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-481-9390, 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
4PQ
NSN: 4720-00-481-9390
FSC: 4720
CAGE: 8Z680 — HOSE COUPLINGS MFG INC (USA)
SPECIFICATIONS
depth3.000 INCHES NOMINAL IN
shapeRECTANGULAR
width9.250 INCHES NOMINAL IN
length12.500 INCHES NOMINAL IN
bearingsNOT INCLUDED
materialPLASTIC
quantity1
bore_typeSTRAIGHT
face_width0.875 INCHES NOMINAL IN
head_styleFILLISTER
bore_length1.188 INCHES NOMINAL IN
design_formSPOKED
NSN4720-00-481-9390
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 4PQ · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
IMM1409-1Interchangeable
interchangeable cross-reference
interchangeable
C104Interchangeable
interchangeable cross-reference
interchangeable
943614-1Interchangeable
interchangeable cross-reference
interchangeable
T09074Interchangeable
interchangeable cross-reference
interchangeable
9A09074Interchangeable
interchangeable cross-reference
interchangeable
2953AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4PQ?
4PQ is a SHIELD,SOCKET,PLUG-IN ELECTRONIC.
What parts can replace 4PQ?
There are 29 known substitutes for 4PQ: IMM1409-1, C104, 943614-1 and 26 more. Substitute compatibility should be verified for your specific system.
Is 4PQ still available?
4PQ 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