PartsTable
Technical Data Sheet
6991D1 ✓ 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 HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 1.000 INCHES NOMINAL IN, connection_style: SWIVEL NUT, GASKET SEAL FIRST END, outside_diameter: 1.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-450-1764, 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
6991D1
NSN: 4720-01-450-1764
FSC: 4720
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter1.000 INCHES NOMINAL IN
connection_styleSWIVEL NUT, GASKET SEAL FIRST END
outside_diameter1.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure135.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
nominal_thread_size1.438 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
end_item_identificationW/S CODE, SEAL DELIVERY VEHICLE
inside_surface_conditionSMOOTH
NSN4720-01-450-1764
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — PN: 6991D1 · 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
END CONNECTION DESIGN: STRAIGHT FIRST END
INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATION: ZZZY
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
OPERATING PRESSURE: 135.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
THREAD QUANTITY PER INCH: 12 FIRST END
THREAD DIRECTION: RIGHT-HAND FIRST END
INSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS (FLIS)
END CONNECTION DESIGNSTRAIGHT FIRST END
INSIDE DIAMETER1.000 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONZZZY
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
OPERATING PRESSURE135.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
THREAD QUANTITY PER INCH12 FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
INSIDE SURFACE CONDITIONSMOOTH
END ITEM IDENTIFICATIONW/S CODE, SEAL DELIVERY VEHICLE
CONNECTION STYLESWIVEL NUT, GASKET SEAL FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
B69911Interchangeable
interchangeable cross-reference
interchangeable
4980283Interchangeable
interchangeable cross-reference
interchangeable
69911Interchangeable
interchangeable cross-reference
interchangeable
6991Interchangeable
interchangeable cross-reference
interchangeable
699Interchangeable
interchangeable cross-reference
interchangeable
10177632/699-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6991D1?
6991D1 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 6991D1?
There are 18 known substitutes for 6991D1: B69911, 4980283, 69911 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6991D1?
6991D1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-450-1764. This indicates validated use in U.S. government and defense supply chains.
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