PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20557Hose Assembly,nonmetallic

Lockheed Martin Corporation · NSN 4720-01-695-0022 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-695-0022 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-695-0022. Primary manufacturer part number: 20557.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-695-0022, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Lockheed Martin Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-695-0022
Primary Part Number20557
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4720-00-035-891920557 INTERCHANGEABLE
Hose,preformed
Gates Corporation
6130-00-235-099220557 INTERCHANGEABLE
Vibrator,self-Rectifying
Naval Ship Systems Command
5930-00-302-1125C2001-501 INTERCHANGEABLE
Switch,toggle
Calculagraph Company Dba Control Products, Inc.
1015-01-229-544120557 INTERCHANGEABLE
Retainer,valve Head
Real-Time Laboratories, Llc
4130-01-327-940020557 INTERCHANGEABLE
Filter-Drier,refrigerant
Schneider Metal Mfg Co Inc Ross Temp Div
4810-01-378-883920557 INTERCHANGEABLE
Retainer,disk,valve
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
5120-01-430-8146 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
20557 PRIMARY Lockheed Martin Corporation (USA)
Related Parts
4720-00-035-8919INTERCHANGEABLE
HOSE,PREFORMED
20557
6130-00-235-0992INTERCHANGEABLE
VIBRATOR,SELF-RECTIFYING
20557
5930-00-302-1125INTERCHANGEABLE
SWITCH,TOGGLE
C2001-501
1015-01-229-5441INTERCHANGEABLE
RETAINER,VALVE HEAD
20557
4130-01-327-9400INTERCHANGEABLE
FILTER-DRIER,REFRIGERANT
20557
4810-01-378-8839INTERCHANGEABLE
RETAINER,DISK,VALVE
20557
5120-01-430-8146INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 4720-01-695-0022?

NSN 4720-01-695-0022 is a Hose Assembly,nonmetallic, manufactured by Lockheed Martin Corporation, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-695-0022?

NSN 4720-01-695-0022 has 1 cross-referenced part number: 20557 (Lockheed Martin Corporation).

What NSN replaces 4720-01-695-0022?

There are 7 known substitutes for 4720-01-695-0022: 4720-00-035-8919, 6130-00-235-0992, 5930-00-302-1125 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20557?

Key specifications for 20557: Part Name Assigned by Controlling Agency: HOSE ASSEMBLY,NONME; End Item Identification: U-2 SUPPORT EQUIPMENT. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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