PartsTable
Technical Data Sheet
Download PDF

1977778-14 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

1977778-14: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include temp_rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 1.235 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN, outside_diameter: 1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN, special_features: TWO HOSE ASSY CONNECTED BY 90 DEG ELBOW,FIRST LEG LENGTH 26.250 IN.,SECOND LEG LENGTH 27.750 IN, end_item_identification: HYDRAULIC ELECTRIC RAMP TYPE STEERING GEAR,MODEL PL1808422, inside_surface_condition: SMOOTH. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-342-6759, 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
1977778-14
NSN: 4720-01-342-6759
FSC: 4720 — Hose and Flexible Tubing
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
temp_rating-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter1.235 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
outside_diameter1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
special_featuresTWO HOSE ASSY CONNECTED BY 90 DEG ELBOW,FIRST LEG LENGTH 26.250 IN.,SECOND LEG LENGTH 27.750 IN
end_item_identificationHYDRAULIC ELECTRIC RAMP TYPE STEERING GEAR,MODEL PL1808422
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
cross-sectional_shape_styleROUND
measuring_method_and_length53.750 INCHES NOMINAL OVERALL IN
minimum_inside_bending_radius16.500 INCHES IN
layer_composition_and_location1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
outer_covering_environmental_protectionOIL RESISTANT AND WATER RESISTANT
NSN4720-01-342-6759
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1977778-14 · 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
•
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
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH53.750 INCHES NOMINAL OVERALL IN
TEMP RATING-40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF
MINIMUM INSIDE BENDING RADIUS16.500 INCHES IN
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED STEEL WIRE AND 2ND LAYER BRAIDED STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER1.938 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN
INSIDE DIAMETER1.235 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
INSIDE SURFACE CONDITIONSMOOTH
SPECIAL FEATURESTWO HOSE ASSY CONNECTED BY 90 DEG ELBOW,FIRST LEG LENGTH 26.250 IN.,SECOND LEG LENGTH 27.750 IN
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
SUBSTITUTES & CROSS-REFERENCES 3
1808422 ITEM 37Reference document
Same NSN cross-reference
Reference document — Secondary reference
1977778 ASSY 14Reference document
Same NSN cross-reference
Reference document — Secondary reference
1808422Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 1977778-14?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1977778-14?
1977778-14 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 1977778-14?
There are 3 known substitutes for 1977778-14: 1808422 ITEM 37, 1977778 ASSY 14, 1808422. Substitute compatibility should be verified for your specific system.
What is the NSN for 1977778-14?
1977778-14 is cataloged in the U.S. Government catalog under NSN 4720-01-342-6759. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1977778-14

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.