PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DILL637Cap,valve

Dill Air Controls Products Llc Dba Dill Air Controls Products Llc · NSN 4820-01-250-1897 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-250-1897 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-250-1897. Primary manufacturer part number: DILL637.
Features
  • Cap,valve — FSC 4820
  • Valve Type for Which Designed: FLUID PRESSURE REGULATING
  • Valve Model Number for Which Designed: MS-3-100
  • 4 verified cross-references
  • Primary manufacturer: Dill Air Controls Products Llc Dba Dill Air Controls Products Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-250-1897, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dill Air Controls Products Llc Dba Dill Air Controls Products Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN4820-01-250-1897
Primary Part NumberDILL637
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDill Air Controls Products Llc Dba Dill Air Controls Products Llc
StatusACTIVE
Valve Type for Which DesignedFLUID PRESSURE REGULATING
Valve Model Number for Which DesignedMS-3-100
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5360-00-009-70491130-3 INTERCHANGEABLE
Spring Cap
Tescom Corp Dba Tescom Div Tescom
4920-00-034-641411303 INTERCHANGEABLE
Adapter Kit Assembl
Elbitamerica, Inc.
3040-00-356-6970SCB77507 INTERCHANGEABLE
Shaft,shutter,motio
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5360-00-489-63871130-3 INTERCHANGEABLE
Spring
Barksdale, Inc
3655-00-521-101411303 INTERCHANGEABLE
Screen,caustic Stra
Air Products & Chemicals, Inc
5930-00-556-068511-303 INTERCHANGEABLE
Switch,sensitive
Illinois Tool Works Inc Dba Illinois Tool Works Inc Div Illinois Tool Works
2520-00-734-907611832 INTERCHANGEABLE
Disk,clutch,vehicular
Sachs-Boge of America
5930-00-914-397711303 INTERCHANGEABLE
Switch
Switchcraft Inc.
5998-01-217-7493 INTERCHANGEABLE
Extender Card,electronic Test
5998-01-259-9484 INTERCHANGEABLE
Circuit Card Assembly
Cross-Reference Index
Part NumberManufacturer
DILL637 PRIMARY Dill Air Controls Products Llc Dba Dill Air Controls Products Llc (USA)
11-303 Oil Air Hydraulics Inc. (USA)
DILL637 Parker-Hannifin Corporation Div Hydraulic Accumulator Division (USA)
MS-3-100 ITEM 3 Oil Air Hydraulics Inc. (USA)
Related Parts
5360-00-009-7049INTERCHANGEABLE
SPRING CAP
1130-3
4920-00-034-6414INTERCHANGEABLE
ADAPTER KIT ASSEMBL
11303
3040-00-356-6970INTERCHANGEABLE
SHAFT,SHUTTER,MOTIO
SCB77507
5360-00-489-6387INTERCHANGEABLE
SPRING
1130-3
3655-00-521-1014INTERCHANGEABLE
SCREEN,CAUSTIC STRA
11303
5930-00-556-0685INTERCHANGEABLE
SWITCH,SENSITIVE
11-303
2520-00-734-9076INTERCHANGEABLE
DISK,CLUTCH,VEHICULAR
11832
5930-00-914-3977INTERCHANGEABLE
SWITCH
11303
5998-01-217-7493INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
5998-01-259-9484INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5330-01-291-5087INTERCHANGEABLE
GASKET
11303
5360-01-315-7210INTERCHANGEABLE
SPRING,HELICAL,TORSION
1130-3

Frequently Asked Questions

What is NSN 4820-01-250-1897?

NSN 4820-01-250-1897 is a Cap,valve, manufactured by Dill Air Controls Products Llc Dba Dill Air Controls Products Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-250-1897?

NSN 4820-01-250-1897 has 4 cross-referenced part numbers: DILL637 (Dill Air Controls Products Llc Dba Dill Air Controls Products Llc), 11-303 (Oil Air Hydraulics Inc.), DILL637 (Parker-Hannifin Corporation Div Hydraulic Accumulator Division), MS-3-100 ITEM 3 (Oil Air Hydraulics Inc.).

What NSN replaces 4820-01-250-1897?

There are 12 known substitutes for 4820-01-250-1897: 5360-00-009-7049, 4920-00-034-6414, 3040-00-356-6970 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DILL637?

Key specifications for DILL637: Valve Type for Which Designed: FLUID PRESSURE REGULATING; Valve Model Number for Which Designed: MS-3-100. 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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