PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1X1LCT-14/S4-95PSIValve,safety Relief

Kunkle Industries Inc Lonergan Valve Div · NSN 4820-01-283-0654 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-283-0654 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-283-0654. Primary manufacturer part number: 1X1LCT-14/S4-95PSI.
Features
  • Valve,safety Relief — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 3 verified cross-references
  • Primary manufacturer: Kunkle Industries Inc Lonergan Valve Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-283-0654, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kunkle Industries Inc Lonergan Valve Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-283-0654
Primary Part Number1X1LCT-14/S4-95PSI
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKunkle Industries Inc Lonergan Valve Div
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2920-00-388-3567A3257 INTERCHANGEABLE
Drive,engine,electrical Starter
Purolator Products Co Div Motor Components, Llc
5330-01-195-9832 INTERCHANGEABLE
Gasket
5330-01-195-9833 INTERCHANGEABLE
Gasket
5360-01-216-8865 INTERCHANGEABLE
Spring Assy,valve
4820-01-244-7637 INTERCHANGEABLE
Valve,safety Relief
5310-01-714-7993A-3257 INTERCHANGEABLE
Nut,self-Locking,hexagon
Hartzell Propeller Llc
Cross-Reference Index
Part NumberManufacturer
1X1LCT-14/S4-95PSI Kunkle Industries Inc Lonergan Valve Div (USA)
A-3257 Kunkle Industries Inc Lonergan Valve Div (USA)
1X1LCT-14/S4 Kunkle Industries Inc Lonergan Valve Div (USA)
Related Parts
2920-00-388-3567INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
A3257
5330-01-195-9832INTERCHANGEABLE
GASKET
5330-01-195-9833INTERCHANGEABLE
GASKET
5360-01-216-8865INTERCHANGEABLE
SPRING ASSY,VALVE
4820-01-244-7637INTERCHANGEABLE
VALVE,SAFETY RELIEF
5310-01-714-7993INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
A-3257

Frequently Asked Questions

What is NSN 4820-01-283-0654?

NSN 4820-01-283-0654 is a Valve,safety Relief, manufactured by Kunkle Industries Inc Lonergan Valve Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-283-0654?

NSN 4820-01-283-0654 has 3 cross-referenced part numbers: 1X1LCT-14/S4-95PSI (Kunkle Industries Inc Lonergan Valve Div), A-3257 (Kunkle Industries Inc Lonergan Valve Div), 1X1LCT-14/S4 (Kunkle Industries Inc Lonergan Valve Div).

What NSN replaces 4820-01-283-0654?

There are 6 known substitutes for 4820-01-283-0654: 2920-00-388-3567, 5330-01-195-9832, 5330-01-195-9833 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1X1LCT-14/S4-95PSI?

Key specifications for 1X1LCT-14/S4-95PSI: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 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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