PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

VRK-2-NRepair Kit,valve

Name: VRK-2-N
SKU: 4820-01-513-5433

Circor Aerospace Inc · NSN 4820-01-513-5433 · FSC 4820 · No Item Name Available

Verified by PartsTable

NSN 4820-01-513-5433 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-513-5433. Primary manufacturer part number: VRK-2-N.

4820-01-513-5433 — No Item Name Available illustration

Features

Repair Kit,valve — FSC 4820
Supply Items and Quantities: 05CT0 10006-5 RUPTURE DISK 1;10028-7 ACTUATOR 1;10041 BARRIER DISK 1;10137 O-RING (2-008) 1;10140 O-RING (3-904) 2;10141 O-RING (3-906) 1;10142 O-RING (2-212) 1;10156 RING,RETAINER 1;10157 O-RING (2-014) 2;10231 SHIPPING CARTON 1;10723-1 CAPSULE DC-55 LUBRICANT 1;10724 POLY BAG 1;11123 CUSHION, POPPET 1;11162-1 POPPET ASSEMBLY 1;11172 O-RING (2-006) 1;11206 O-RING (2-010) 1; 11179 WASHER (COPPER) 1
Component Quantity: 19
3 verified cross-references
Primary manufacturer: Circor Aerospace Inc

Applications

Flow control in piping systems
Pressure regulation
Steam and fluid isolation

General Description

The Repair Kit,valve, cataloged under National Stock Number 4820-01-513-5433, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-513-5433
Primary Part Number	VRK-2-N
Item Name	Repair Kit,valve
FSC / FSG	4820 / 48 — No Item Name Available
Manufacturer	Circor Aerospace Inc
Status	ACTIVE
Supply Items and Quantities	05CT0 10006-5 RUPTURE DISK 1;10028-7 ACTUATOR 1;10041 BARRIER DISK 1;10137 O-RING (2-008) 1;10140 O-RING (3-904) 2;10141 O-RING (3-906) 1;10142 O-RING (2-212) 1;10156 RING,RETAINER 1;10157 O-RING (2-014) 2;10231 SHIPPING CARTON 1;10723-1 CAPSULE DC-55 LUBRICANT 1;10724 POLY BAG 1;11123 CUSHION, POPPET 1;11162-1 POPPET ASSEMBLY 1;11172 O-RING (2-006) 1;11206 O-RING (2-010) 1; 11179 WASHER (COPPER) 1
Component Quantity	19

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 10

3110-00-227-2811 INTERCHANGEABLE

Bearing,roller,needle

5960-00-273-2434160729 INTERCHANGEABLE

Retainer,electron Tube

Melstrom Manufacturing Corporation

5210-00-293-2913123EMZ-12 INTERCHANGEABLE

Caliper,vernier

L.s. Starrett Company (the) Div Tool Division

3040-00-356-3356 INTERCHANGEABLE

Cam,control

6625-00-503-4954SA1820050536 INTERCHANGEABLE

Cavity,tuned

Johnson Controls, Inc Div Building Efficiency

9540-00-529-8915 INTERCHANGEABLE

Angle,structural

5330-00-641-20964B5432 INTERCHANGEABLE

Seal,plain Encased

Caterpillar Inc Div Caterpillar Defense

4730-00-833-7982505-0036 INTERCHANGEABLE

Reducer,pipe

Cummins Power Generation Inc.

2930-00-871-696455-1075 INTERCHANGEABLE

Pump,cooling System,engine

Napa Automotive Parts Co

5330-01-121-820031081 INTERCHANGEABLE

Packing

Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group

Cross-Reference Index

Part Number	Manufacturer
VRK-2-N PRIMARY	Circor Aerospace Inc (USA)
50536	Circor Aerospace, Inc. Dba Sei Products (USA)
50536	Circor Aerospace Inc (USA)

Related Parts

3110-00-227-2811INTERCHANGEABLE

BEARING,ROLLER,NEEDLE

5960-00-273-2434INTERCHANGEABLE

RETAINER,ELECTRON TUBE

160729

5210-00-293-2913INTERCHANGEABLE

CALIPER,VERNIER

123EMZ-12

3040-00-356-3356INTERCHANGEABLE

CAM,CONTROL

6625-00-503-4954INTERCHANGEABLE

CAVITY,TUNED

SA1820050536

9540-00-529-8915INTERCHANGEABLE

ANGLE,STRUCTURAL

5330-00-641-2096INTERCHANGEABLE

SEAL,PLAIN ENCASED

4B5432

4730-00-833-7982INTERCHANGEABLE

REDUCER,PIPE

505-0036

2930-00-871-6964INTERCHANGEABLE

PUMP,COOLING SYSTEM,ENGINE

55-1075

5330-01-121-8200INTERCHANGEABLE

PACKING

31081

Frequently Asked Questions

What is NSN 4820-01-513-5433?

NSN 4820-01-513-5433 is a Repair Kit,valve, manufactured by Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-513-5433?

NSN 4820-01-513-5433 has 3 cross-referenced part numbers: VRK-2-N (Circor Aerospace Inc), 50536 (Circor Aerospace, Inc. Dba Sei Products), 50536 (Circor Aerospace Inc).

What NSN replaces 4820-01-513-5433?

There are 10 known substitutes for 4820-01-513-5433: 3110-00-227-2811, 5960-00-273-2434, 5210-00-293-2913 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of VRK-2-N?

Key specifications for VRK-2-N: Supply Items and Quantities: 05CT0 10006-5 RUPTURE DISK 1;10028-7 ACTUATOR 1;10041 BARRIER DISK 1;10137 O-RING (2-008) 1;10140 O-RING (3-904) 2;10141 O-RING (3-906) 1;10142 O-RING (2-212) 1;10156 RING,RETAINER 1;10157 O-RING (2-014) 2;10231 SHIPPING CARTON 1;10723-1 CAPSULE DC-55 LUBRICANT 1;10724 POLY BAG 1;11123 CUSHION, POPPET 1;11162-1 POPPET ASSEMBLY 1;11172 O-RING (2-006) 1;11206 O-RING (2-010) 1; 11179 WASHER (COPPER) 1; Component Quantity: 19; End Item Identification: MK-7,LIFE RAFT CYLINDER ASSEMBLY. 3 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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