PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40611-8 PC NO 37Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-517-0962 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-517-0962 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-517-0962. Primary manufacturer part number: 40611-8 PC NO 37.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY 922 SEAT
  • Material Document and Classification: ASTM-B61 ASSN STD SINGLE MATERIAL RESPONSE SEAT
  • Style Designator: PLAIN FLANGED
  • Seal Accommodation Type: GROOVED
  • Seating Surface Shape: O-RING
  • 3 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-517-0962, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-517-0962
Primary Part Number40611-8 PC NO 37
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialCOPPER ALLOY 922 SEAT
Material Document and ClassificationASTM-B61 ASSN STD SINGLE MATERIAL RESPONSE SEAT
Style DesignatorPLAIN FLANGED
Seal Accommodation TypeGROOVED
Seating Surface ShapeO-RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2815-00-054-7716168-0203 INTERCHANGEABLE
Parts Kit,diesel Engine
Cummins Power Generation Inc.
4920-00-398-1269 INTERCHANGEABLE
Test Stand Engine S
4320-00-398-8019168100 INTERCHANGEABLE
Impeller,pump,centrifugal
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5315-01-107-12781681-00 INTERCHANGEABLE
Key,machine
Decision Data Computer Corp
5905-01-172-4002 INTERCHANGEABLE
Resistor
4520-01-203-4410168100 INTERCHANGEABLE
Heater,space
Hdt Expeditionary Systems Inc
5995-01-477-4620168100 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4820-01-515-71401683-01 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-714840611 PC NO 31 INTERCHANGEABLE
Stem,needle Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-515-716240611-8 PC NO 30 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
1681-00 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40611-8 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40611-8 PC NO 37 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
2815-00-054-7716INTERCHANGEABLE
PARTS KIT,DIESEL ENGINE
168-0203
4920-00-398-1269INTERCHANGEABLE
TEST STAND ENGINE S
4320-00-398-8019INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
168100
5315-01-107-1278INTERCHANGEABLE
KEY,MACHINE
1681-00
5905-01-172-4002INTERCHANGEABLE
RESISTOR
4520-01-203-4410INTERCHANGEABLE
HEATER,SPACE
168100
5995-01-477-4620INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
168100
4820-01-515-7140INTERCHANGEABLE
DISK,VALVE
1683-01
4820-01-515-7148INTERCHANGEABLE
STEM,NEEDLE VALVE
40611 PC NO 31
4820-01-515-7162INTERCHANGEABLE
SEAT,VALVE
40611-8 PC NO 30
4820-01-515-7165INTERCHANGEABLE
RING,VALVE PISTON
40611-8 PC NO 26
4820-01-515-7175INTERCHANGEABLE
PISTON,VALVE
40611-8 PC NO 25

Frequently Asked Questions

What is NSN 4820-01-517-0962?

NSN 4820-01-517-0962 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-517-0962?

NSN 4820-01-517-0962 has 3 cross-referenced part numbers: 1681-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40611-8 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40611-8 PC NO 37 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-517-0962?

There are 12 known substitutes for 4820-01-517-0962: 2815-00-054-7716, 4920-00-398-1269, 4320-00-398-8019 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40611-8 PC NO 37?

Key specifications for 40611-8 PC NO 37: Material: COPPER ALLOY 922 SEAT; Material Document and Classification: ASTM-B61 ASSN STD SINGLE MATERIAL RESPONSE SEAT; Style Designator: PLAIN FLANGED; Seal Accommodation Type: GROOVED. 7 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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