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PartsTable / COMPONENT / 1549789PT4
1549789PT4 ✓ 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

HOSE ASSEMBLY,NONMETALLIC,FIRE F. Key specifications include shape: SQUARE, material: COPPER ALLOY BODY, head_style: PAN, design_type: LIMITED, head_height: 0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN, body_diameter: 13.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-922-5138, 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
1549789PT4
NSN: 4720-00-922-5138
FSC: 4720
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
shapeSQUARE
materialCOPPER ALLOY BODY
head_stylePAN
design_typeLIMITED
head_height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
body_diameter13.000 INCHES NOMINAL IN
head_diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_width12.900 INCHES NOMINAL IN
overall_height15.600 INCHES NOMINAL IN
overall_length16.900 INCHES NOMINAL IN
spout_tip_typeAERATOR
fastener_length0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN
NSN4720-00-922-5138
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1549789PT4 · 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 30
42116Interchangeable
interchangeable cross-reference
interchangeable
C100230666Interchangeable
interchangeable cross-reference
interchangeable
MIL-W-16878/4Interchangeable
interchangeable cross-reference
interchangeable
HMS271-30AWG-BLUInterchangeable
interchangeable cross-reference
interchangeable
WMF4PIEInterchangeable
interchangeable cross-reference
interchangeable
11101-057Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1549789PT4?
1549789PT4 is a HOSE ASSEMBLY,NONMETALLIC,FIRE F.
What parts can replace 1549789PT4?
There are 30 known substitutes for 1549789PT4: 42116, C100230666, MIL-W-16878/4 and 27 more. Substitute compatibility should be verified for your specific system.
Is 1549789PT4 still available?
1549789PT4 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