PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91-16174-5Seat-Cap Assembly

Dragon Valves Inc · NSN 4820-01-256-7081 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-256-7081 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-256-7081. Primary manufacturer part number: 91-16174-5.
Features
  • Seat-Cap Assembly — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Dragon Valves Inc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Seat-Cap Assembly, cataloged under National Stock Number 4820-01-256-7081, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dragon Valves Inc. This item has 3 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
NSN4820-01-256-7081
Primary Part Number91-16174-5
Item NameSeat-Cap Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDragon Valves Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-174-621923520737 INTERCHANGEABLE
Thermometer,indicating,capillary
Rolls-Royce Solutions America Inc
6150-00-279-839816401 INTERCHANGEABLE
Lead,electrical
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
2910-00-433-078416173 INTERCHANGEABLE
Lever Assembly,throttle
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6530-00-480-8286Q-22 INTERCHANGEABLE
Light,diagnostic-Examination
Spectro-Uv, Llc
2520-00-703-98862004176 INTERCHANGEABLE
Plate Clutch High S
General Motors Llc Dba General Motors Llc
5305-00-922-8777MS35275-202 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5365-01-338-561816401 INTERCHANGEABLE
Spacer,sleeve
Aerosonic Llc
4140-01-356-586416173 INTERCHANGEABLE
Impeller,fan,centrifugal
Colmac Coil Manufacturing, Inc. Dba Colmac Coil Manufacturing Inc
5310-01-377-623240506-9 ITEM 21 INTERCHANGEABLE
Nut,plain,hexagon
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4320-01-469-082016-401M INTERCHANGEABLE
Pump Unit,hydraulic
Metrex Valve Corp. Dba Metrex Valve Corp
Cross-Reference Index
Part NumberManufacturer
16173 Dragon Valves Inc (USA)
16401 Dragon Valves Inc (USA)
91-16174-5 PRIMARY Dragon Valves Inc (USA)
Related Parts
6685-00-174-6219INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
23520737
6150-00-279-8398INTERCHANGEABLE
LEAD,ELECTRICAL
16401
2910-00-433-0784INTERCHANGEABLE
LEVER ASSEMBLY,THROTTLE
16173
6530-00-480-8286INTERCHANGEABLE
LIGHT,DIAGNOSTIC-EXAMINATION
Q-22
2520-00-703-9886INTERCHANGEABLE
PLATE CLUTCH HIGH S
2004176
5305-00-922-8777INTERCHANGEABLE
SCREW,MACHINE
MS35275-202
5365-01-338-5618INTERCHANGEABLE
SPACER,SLEEVE
16401
4140-01-356-5864INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
16173
5310-01-377-6232INTERCHANGEABLE
NUT,PLAIN,HEXAGON
40506-9 ITEM 21
4320-01-469-0820INTERCHANGEABLE
PUMP UNIT,HYDRAULIC
16-401M
5930-01-499-6872INTERCHANGEABLE
SWITCH,PRESSURE
1640-1
6515-01-589-5121INTERCHANGEABLE
SCREW,BONE
212.201

Frequently Asked Questions

What is NSN 4820-01-256-7081?

NSN 4820-01-256-7081 is a Seat-Cap Assembly, manufactured by Dragon Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-256-7081?

NSN 4820-01-256-7081 has 3 cross-referenced part numbers: 16173 (Dragon Valves Inc), 16401 (Dragon Valves Inc), 91-16174-5 (Dragon Valves Inc).

What NSN replaces 4820-01-256-7081?

There are 12 known substitutes for 4820-01-256-7081: 6685-00-174-6219, 6150-00-279-8398, 2910-00-433-0784 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 91-16174-5?

Key specifications for 91-16174-5: End Item Identification: GLOBE VALVE. 1 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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