PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10556SPValve,safety Relief

North American Controls Inc Dba North American Controls Inc · NSN 4820-01-460-3548 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-460-3548 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-460-3548. Primary manufacturer part number: 10556SP.
Features
  • Valve,safety Relief — FSC 4820
  • Style Designator: SCREW-IN CARTRIDGE
  • Nominal Length: 3.340 INCHES ALL ENDS IN
  • 2 verified cross-references
  • Primary manufacturer: North American Controls Inc Dba North American Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-01-460-3548, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is North American Controls Inc Dba North American Controls Inc. Government technical data includes 2 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
NSN4820-01-460-3548
Primary Part Number10556SP
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorth American Controls Inc Dba North American Controls Inc
StatusACTIVE
Style DesignatorSCREW-IN CARTRIDGE
Nominal Length3.340 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-086-1497 INTERCHANGEABLE
Angle,structural
9540-00-086-1498 INTERCHANGEABLE
Angle,structural
5999-00-138-8797 INTERCHANGEABLE
Mounting Pad,electrical-Electron
4320-00-300-59986620P INTERCHANGEABLE
Rod,piston,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5340-00-337-32271055-6 INTERCHANGEABLE
Bolt,chain
Stanley Black & Decker, Inc.
5360-00-388-7025 INTERCHANGEABLE
Spring,flat
5950-00-486-618610556 INTERCHANGEABLE
Transformer,power
Astronautics Corporation of America
5935-00-553-9080760916-2 INTERCHANGEABLE
Connector,plug,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5835-00-850-1475 INTERCHANGEABLE
Reel,magnetic Recording Tape
6625-01-053-6563 INTERCHANGEABLE
Lead,test
Cross-Reference Index
Part NumberManufacturer
10556SP PRIMARY North American Controls Inc Dba North American Controls Inc (USA)
10556 North American Controls Inc Dba North American Controls Inc (USA)
Related Parts
9540-00-086-1497INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-086-1498INTERCHANGEABLE
ANGLE,STRUCTURAL
5999-00-138-8797INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
4320-00-300-5998INTERCHANGEABLE
ROD,PISTON,PUMP
6620P
5340-00-337-3227INTERCHANGEABLE
BOLT,CHAIN
1055-6
5360-00-388-7025INTERCHANGEABLE
SPRING,FLAT
5950-00-486-6186INTERCHANGEABLE
TRANSFORMER,POWER
10556
5935-00-553-9080INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
760916-2
5835-00-850-1475INTERCHANGEABLE
REEL,MAGNETIC RECORDING TAPE
6625-01-053-6563INTERCHANGEABLE
LEAD,TEST
5305-01-329-3862INTERCHANGEABLE
SETSCREW
5365-01-502-7641INTERCHANGEABLE
SPACER,SLEEVE
10-556

Frequently Asked Questions

What is NSN 4820-01-460-3548?

NSN 4820-01-460-3548 is a Valve,safety Relief, manufactured by North American Controls Inc Dba North American Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-460-3548?

NSN 4820-01-460-3548 has 2 cross-referenced part numbers: 10556SP (North American Controls Inc Dba North American Controls Inc), 10556 (North American Controls Inc Dba North American Controls Inc).

What NSN replaces 4820-01-460-3548?

There are 12 known substitutes for 4820-01-460-3548: 9540-00-086-1497, 9540-00-086-1498, 5999-00-138-8797 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10556SP?

Key specifications for 10556SP: End Item Identification: USED ON LIGHT ARMOURED VEHICLE LAV PER CAR APC; Style Designator: SCREW-IN CARTRIDGE; Part Name Assigned by Controlling Agency: RELIEF VALVE; Nominal Length: 3.340 INCHES ALL ENDS IN. 4 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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