PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1870-01Screw,cap,hexagon Head

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5305-01-643-0149 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-643-0149 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-643-0149. Primary manufacturer part number: 1870-01.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Quantity Per Inch: 14
  • Thread Length: 4.000 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Nominal Thread Diameter: 1.000 INCHES IN
  • Fastener Length: 10.250 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-643-0149, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 7 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
NSN5305-01-643-0149
Primary Part Number1870-01
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Thread Quantity Per Inch14
Thread Length4.000 INCHES NOMINAL IN
Head StyleHEXAGON
Nominal Thread Diameter1.000 INCHES IN
Fastener Length10.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5340-00-570-3734PLGA1870010A INTERCHANGEABLE
Plug Assembly,sealing
The Lee Co Dba the Lee Co
4470-00-905-6808 INTERCHANGEABLE
Cage,spring
5340-01-025-2498187001 INTERCHANGEABLE
Stop,mechanical
Telemechanics Inc
4820-01-508-44171876-02 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45151875-00 INTERCHANGEABLE
Diaphragm,valve,flat
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45401881-00 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45511880-00 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45551874-00 INTERCHANGEABLE
Guide,diaphragm,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45621882-00 INTERCHANGEABLE
Retainer,disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-524-221140737-203 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40737-2 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40737-2PC32 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
1870-01 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5340-00-570-3734INTERCHANGEABLE
PLUG ASSEMBLY,SEALING
PLGA1870010A
4470-00-905-6808INTERCHANGEABLE
CAGE,SPRING
5340-01-025-2498INTERCHANGEABLE
STOP,MECHANICAL
187001
4820-01-508-4417INTERCHANGEABLE
STEM,FLUID VALVE
1876-02
4820-01-508-4515INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
1875-00
4820-01-508-4540INTERCHANGEABLE
DISK,VALVE
1881-00
4820-01-508-4551INTERCHANGEABLE
SEAT,VALVE
1880-00
4820-01-508-4555INTERCHANGEABLE
GUIDE,DIAPHRAGM,VALVE
1874-00
4820-01-508-4562INTERCHANGEABLE
RETAINER,DISK,VALVE
1882-00
4820-01-524-2211INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40737-203
4820-01-524-2542INTERCHANGEABLE
STEM,FLUID VALVE
1876-03
5360-01-643-0131INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2212-00

Frequently Asked Questions

What is NSN 5305-01-643-0149?

NSN 5305-01-643-0149 is a Screw,cap,hexagon Head, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-643-0149?

NSN 5305-01-643-0149 has 3 cross-referenced part numbers: 40737-2 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40737-2PC32 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 1870-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 5305-01-643-0149?

There are 12 known substitutes for 5305-01-643-0149: 5340-00-570-3734, 4470-00-905-6808, 5340-01-025-2498 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1870-01?

Key specifications for 1870-01: Thread Quantity Per Inch: 14; Thread Length: 4.000 INCHES NOMINAL IN; Head Style: HEXAGON; Nominal Thread Diameter: 1.000 INCHES IN. 8 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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