PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503-02Parts Kit,valve

Norgren C a Co · NSN 4820-00-755-6773 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-755-6773 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-755-6773. Primary manufacturer part number: 503-02.
Features
  • Parts Kit,valve — FSC 4820
  • Component Quantity: 2
  • Nonsupply Items and Quantities: SPRING 2
  • 1 verified cross-reference
  • Primary manufacturer: Norgren C a Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,valve, cataloged under National Stock Number 4820-00-755-6773, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Norgren C a Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-755-6773
Primary Part Number503-02
Item NameParts Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorgren C a Co
StatusACTIVE
Component Quantity2
Nonsupply Items and QuantitiesSPRING 2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-292-16030S2063 INTERCHANGEABLE
Seal,plain Encased
Gits Mfg Co Inc
2530-00-308-71142F7501 INTERCHANGEABLE
Bar,snubber
Caterpillar Inc Div Caterpillar Defense
5315-00-351-7900SC-B-69783 INTERCHANGEABLE
Pin,shoulder,headless
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2990-00-398-07745-030-2 INTERCHANGEABLE
Coolant
Bird Electronic Corporation Div Bird Electronic Corp
5950-00-472-566150302 INTERCHANGEABLE
Transformer,power
Coiltron Inc Div Coiltron
2590-00-778-401450-302 INTERCHANGEABLE
C0ver,impeller H0us
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4730-00-817-989650302 INTERCHANGEABLE
Coupling Half,quick Disconnect
Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit
4820-01-073-1802CCB-36450-5 INTERCHANGEABLE
Valve Assy,drain
Curtis Superior Valve Co., Inc. Dba Curtis Superior Valve Co
7021-01-347-8736 INTERCHANGEABLE
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7930-01-380-852250302 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
503-02 PRIMARY Norgren C a Co (USA)
Related Parts
5330-00-292-1603INTERCHANGEABLE
SEAL,PLAIN ENCASED
0S2063
2530-00-308-7114INTERCHANGEABLE
BAR,SNUBBER
2F7501
5315-00-351-7900INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
SC-B-69783
2990-00-398-0774INTERCHANGEABLE
COOLANT
5-030-2
5950-00-472-5661INTERCHANGEABLE
TRANSFORMER,POWER
50302
2590-00-778-4014INTERCHANGEABLE
C0VER,IMPELLER H0US
50-302
4730-00-817-9896INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
50302
4820-01-073-1802INTERCHANGEABLE
VALVE ASSY,DRAIN
CCB-36450-5
7021-01-347-8736INTERCHANGEABLE
COMPUTER,DIGITAL
7930-01-380-8522INTERCHANGEABLE
REMOVER,NONBUFFING FLOOR POLISH
50302
5855-01-663-6092INTERCHANGEABLE
ILLUMINATOR,INTEGRATED,SMALL ARM

Frequently Asked Questions

What is NSN 4820-00-755-6773?

NSN 4820-00-755-6773 is a Parts Kit,valve, manufactured by Norgren C a Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-755-6773?

NSN 4820-00-755-6773 has 1 cross-referenced part number: 503-02 (Norgren C a Co).

What NSN replaces 4820-00-755-6773?

There are 11 known substitutes for 4820-00-755-6773: 5330-00-292-1603, 2530-00-308-7114, 5315-00-351-7900 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 503-02?

Key specifications for 503-02: Component Quantity: 2; Nonsupply Items and Quantities: SPRING 2; Special Features: ONE SPRING 1.875 IN. LG,0.781 IN. OD,0.375 IN. ID,OTHER SPRING 2.562 IN. LG. 1.781 IN. OD,1.000 IN. ID IN. 3 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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