PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1304Seat,valve

Phd, Inc. · NSN 4820-00-005-4983 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-005-4983 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-005-4983. Primary manufacturer part number: 1304.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: ANGULAR
  • Style Designator: PLAIN FLANGED
  • Material: COPPER ALLOY OVERALL
  • Body Outside Diameter: 0.622 INCHES NOMINAL IN
  • Under Flange Height: 0.061 INCHES NOMINAL IN
  • Seat Angle in Deg: 0.167 NOMINAL
  • Flange Diameter: 0.758 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-005-4983, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Phd, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-005-4983
Primary Part Number1304
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPhd, Inc.
StatusACTIVE
Seating Surface ShapeANGULAR
Style DesignatorPLAIN FLANGED
MaterialCOPPER ALLOY OVERALL
Body Outside Diameter0.622 INCHES NOMINAL IN
Under Flange Height0.061 INCHES NOMINAL IN
Seat Angle in Deg0.167 NOMINAL
Flange Diameter0.758 INCHES NOMINAL IN
Body Inside Diameter0.500 INCHES NOMINAL IN
Flange Seat to Disk End Height0.095 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-070-6925381-2 INTERCHANGEABLE
Valve,angle
Admiral Valve Llc Dba Cpv Manufacturing
6630-00-252-5063 INTERCHANGEABLE
Disk,color Standards
6105-00-441-28705K21GJ40E INTERCHANGEABLE
Motor,alternating Current
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
5120-00-497-341541R02371110 INTERCHANGEABLE
Puller,mechanical
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5920-00-671-932138212 INTERCHANGEABLE
Adapter,fuse
Trico Corporation Div Trico Corp
2910-00-774-4275119257 INTERCHANGEABLE
Pump,fuel,cam Actuated
Am General Llc
5306-01-010-2160 INTERCHANGEABLE
Bolt,expansion
7450-01-076-90253812 INTERCHANGEABLE
Recorder-Reproducer,sound
Dictaphone Corporation
5905-01-188-6808L12J2K7 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
6515-01-216-18343812 INTERCHANGEABLE
Bag,ostomy
Hollister Inc
Cross-Reference Index
Part NumberManufacturer
3812 Phd, Inc. (USA)
1304 PRIMARY Phd, Inc. (USA)
Related Parts
4820-00-070-6925INTERCHANGEABLE
VALVE,ANGLE
381-2
6630-00-252-5063INTERCHANGEABLE
DISK,COLOR STANDARDS
6105-00-441-2870INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5K21GJ40E
5120-00-497-3415INTERCHANGEABLE
PULLER,MECHANICAL
41R02371110
5920-00-671-9321INTERCHANGEABLE
ADAPTER,FUSE
38212
2910-00-774-4275INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
119257
5306-01-010-2160INTERCHANGEABLE
BOLT,EXPANSION
7450-01-076-9025INTERCHANGEABLE
RECORDER-REPRODUCER,SOUND
3812
5905-01-188-6808INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
L12J2K7
6515-01-216-1834INTERCHANGEABLE
BAG,OSTOMY
3812
5999-01-216-7854INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
3812
5915-01-293-2159INTERCHANGEABLE
FILTER,BAND PASS
425422-1

Frequently Asked Questions

What is NSN 4820-00-005-4983?

NSN 4820-00-005-4983 is a Seat,valve, manufactured by Phd, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-005-4983?

NSN 4820-00-005-4983 has 2 cross-referenced part numbers: 3812 (Phd, Inc.), 1304 (Phd, Inc.).

What NSN replaces 4820-00-005-4983?

There are 12 known substitutes for 4820-00-005-4983: 4820-00-070-6925, 6630-00-252-5063, 6105-00-441-2870 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1304?

Key specifications for 1304: Seating Surface Shape: ANGULAR; Style Designator: PLAIN FLANGED; Material: COPPER ALLOY OVERALL; Body Outside Diameter: 0.622 INCHES NOMINAL IN. 9 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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