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Technical Data Sheet
PartsTable / COMPONENT / 2651-4L1
2651-4L1 ✓ 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

The TELEPHONE TERMINAL SUBASSEMBLY is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC TUBE, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, vacuum_in_torr: 50.8, inside_diameter: 0.188 INCHES NOMINAL IN, outside_diameter: 0.516 INCHES NOMINAL IN, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-288-9878, 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
2651-4L1
NSN: 4720-00-288-9878
FSC: 4720
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC TUBE
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
vacuum_in_torr50.8
inside_diameter0.188 INCHES NOMINAL IN
outside_diameter0.516 INCHES NOMINAL IN
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure12000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
media_for_which_designedAIR AND BUTANE AND FUEL/OIL, HYDROCARBON AND WATER, FRESH AND WATER, SALT SINGLE RESPONSE
hydrostatic_test_pressure6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
cross-sectional_shape_styleROUND
nondefinitive_spec/std_data4 SIZE
NSN4720-00-288-9878
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 2651-4L1 · 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
KEY FEATURES
•
TEMP RATING: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED STEEL WIRE AND 3RD LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
MINIMUM INSIDE BENDING RADIUS: 3.000 INCHES IN
•
INSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: RUBBER SYNTHETIC TUBE
•
MEDIA FOR WHICH DESIGNED: AIR AND BUTANE AND FUEL/OIL, HYDROCARBON AND WATER, FRESH AND WATER, SALT SINGLE RESPONSE
•
SPECIFICATION/STANDARD DATA: 81343-SAE J517,100R5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
HYDROSTATIC TEST PRESSURE: 6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED STEEL WIRE AND 3RD LAYER BRAIDED TEXTILE YARN AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
INSIDE SURFACE CONDITIONSMOOTH
MATERIALRUBBER SYNTHETIC TUBE
MEDIA FOR WHICH DESIGNEDAIR AND BUTANE AND FUEL/OIL, HYDROCARBON AND WATER, FRESH AND WATER, SALT SINGLE RESPONSE
SPECIFICATION/STANDARD DATA81343-SAE J517,100R5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
HYDROSTATIC TEST PRESSURE6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
NONDEFINITIVE SPEC/STD DATA4 SIZE
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
2651-10Interchangeable
interchangeable cross-reference
interchangeable
73917-32X1ITEM8Interchangeable
interchangeable cross-reference
interchangeable
M24135/10-10Interchangeable
interchangeable cross-reference
interchangeable
1332Interchangeable
interchangeable cross-reference
interchangeable
D300R/5Interchangeable
interchangeable cross-reference
interchangeable
81AD1679-22Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2651-4L1?
2651-4L1 is a TELEPHONE TERMINAL SUBASSEMBLY.
What parts can replace 2651-4L1?
There are 36 known substitutes for 2651-4L1: 2651-10, 73917-32X1ITEM8, M24135/10-10 and 33 more. Substitute compatibility should be verified for your specific system.
Is 2651-4L1 still available?
2651-4L1 is currently cancelled.
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Last verified: July 2026