PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-1931Tube,specimen

Arrowhead Scientific, Inc. Dba Arrowhead Forensics · NSN 6640-01-693-1054 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-693-1054 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-693-1054. Primary manufacturer part number: A-1931.
Features
  • Tube,specimen — FSC 6640
  • Top Inside Diameter: 1.26 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Arrowhead Scientific, Inc. Dba Arrowhead Forensics
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Tube,specimen, cataloged under National Stock Number 6640-01-693-1054, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Arrowhead Scientific, Inc. Dba Arrowhead Forensics. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN6640-01-693-1054
Primary Part NumberA-1931
Item NameTube,specimen
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerArrowhead Scientific, Inc. Dba Arrowhead Forensics
StatusACTIVE
Top Inside Diameter1.26 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-142-4370 INTERCHANGEABLE
Cup,tapered Roller Bearing
5915-01-266-1156 INTERCHANGEABLE
Filter,radio Frequency Interfere
8455-01-556-2863 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-556-2871 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-654-3205 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-717-7520 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A-1931 PRIMARY Arrowhead Scientific, Inc. Dba Arrowhead Forensics (USA)
Related Parts
3110-00-142-4370INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5915-01-266-1156INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
8455-01-556-2863INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-556-2871INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-654-3205INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-717-7520INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 6640-01-693-1054?

NSN 6640-01-693-1054 is a Tube,specimen, manufactured by Arrowhead Scientific, Inc. Dba Arrowhead Forensics, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-693-1054?

NSN 6640-01-693-1054 has 1 cross-referenced part number: A-1931 (Arrowhead Scientific, Inc. Dba Arrowhead Forensics).

What NSN replaces 6640-01-693-1054?

There are 6 known substitutes for 6640-01-693-1054: 3110-00-142-4370, 5915-01-266-1156, 8455-01-556-2863 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-1931?

Key specifications for A-1931: Part Name Assigned by Controlling Agency: ADJUSTABLE EVIDENCE TUBE; Top Inside Diameter: 1.26 INCHES NOMINAL IN; Special Features: REUSABLE TUBES ARE RIGID, DURABLE,RESISTANT TO HUMIDITY; Overall Length: 7.875 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com