NSN 4720-01-342-6759 · NIIN 013426759 · Part number 1977778-14
Northrop Grumman Systems Corporation · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 03956
Government record, cited
NSN 4720-01-342-6759 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-342-6759. Manufacturer of record part number: 1977778-14.
Measuring Method and Length: 53.750 INCHES NOMINAL OVERALL IN
Temp Rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Minimum Inside Bending Radius: 16.500 INCHES IN
Layer Composition and Location: 1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Cross-Sectional Shape Style: ROUND
Outside Diameter: 1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
Inside Diameter: 1.235 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
Identification
NSN: 4720-01-342-6759
NIIN: 013426759
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 1977778-14
Manufacturer: Northrop Grumman Systems Corporation
General Description
The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-342-6759, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4720-01-342-6759
Primary Part Number
1977778-14
Item Name
Hose Assembly,nonmetallic
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
Northrop Grumman Systems Corporation
Status
ACTIVE
Measuring Method and Length
53.750 INCHES NOMINAL OVERALL IN
Temp Rating
-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
Minimum Inside Bending Radius
16.500 INCHES IN
Layer Composition and Location
1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
Cross-Sectional Shape Style
ROUND
Outside Diameter
1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
Inside Diameter
1.235 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
Inside Surface Condition
SMOOTH
Media for Which Designed
FUEL/OIL, HYDROCARBON SINGLE RESPONSE
Outer Covering Environmental Protection
OIL RESISTANT AND WATER RESISTANT
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-342-67601977778-15POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Northrop Grumman Systems Corporation
4720-01-342-67611977778-16POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Northrop Grumman Systems Corporation
4720-01-342-67621808422 ITEM 40POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Northrop Grumman Systems Corporation
4720-01-342-8663C21117-1POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Hydrasearch Company, Llc
4720-01-342-8664PE-44415-501POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
4720-01-342-8665PE-44415-502POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
4720-01-342-8666PE-44415-506POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
4720-01-342-8667PE-44415-507POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
NSN 4720-01-342-6759 is a Hose Assembly,nonmetallic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-01-342-6759?
NSN 4720-01-342-6759 has 1 manufacturer part number on file: 1977778-14 (Northrop Grumman Systems Corporation).
What NSN replaces 4720-01-342-6759?
8 possible matches (shared part number, not a government interchangeability claim): 4720-01-342-6760, 4720-01-342-6761, 4720-01-342-6762. Verify interchangeability with system specifications before substitution.
What are the specifications of 1977778-14?
Key specifications for 1977778-14: Measuring Method and Length: 53.750 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 16.500 INCHES IN; Layer Composition and Location: 1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-342-6759 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.