PartsTable
Technical Data Sheet
640-25 ✓ Verified by PartsTable
Kensington · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

Protect your laptop and monitor with this double lock-head security system. T-Bar™ locking mechanism and high-carbon steel cable provide maximum protection that attaches to the standard Kensington security slot found in 99% of laptops and many computer devices. Lock down your computer system and leave it safe.<br><br>Let your security cable and lock do double duty with the MicroSaver Keyed Twin Head Lock.

Kensington is the industry standard, locking devices for more than 20 years. Two T-Bar™ locks easily secure your laptop and a peripheral desktop device like a monitor or external hard drive with a Kensington Security Slot, all on a single cable. The 7.5-foot cable is 40% stronger than a standard cable and features aircraft-grade steel.<br>Hidden Pin™ technology ensures tubular lock cannot be picked<br>T-Bar™ Locking Technology attaches to the Kensington Security Slot™ found on most laptops<br>Two lock heads allow you to secure a laptop and a peripheral accessory<br>7.2-foot cable is m This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-164-6454, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 640-25
NSN: 6145-01-164-6454
FSC: 6145
CAGE: 6Y446 — VETERAN WIRE AND CABLE CORP (USA)
SPECIFICATIONS
special_featuresFORMERLY 53273
end_item_identificationHELICOPTER IN-FLIGHT REFUELING RIG
part_name_assigned_by_controlling_agencyFLIGHT RECIRCULATION UNIT
NSN6145-01-164-6454
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 640-25 · Kensington ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
CONDUCTOR QUANTITY: 25
CROSS SECTION OUTSIDE DIAMETER: 0.520 INCHES NOMINAL IN
STRAND AWG SIZE PER CONDUCTOR: 30 ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR: 10 ALL CONDUCTORS
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
CONDUCTOR ARRANGEMENT AND QUANTITY: 25 SINGLES
SURFACE TREATMENT: ALUMINUM FIRST POSITION SHIELD FOIL CABLE
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CONDUCTOR QUANTITY25
CROSS SECTION OUTSIDE DIAMETER0.520 INCHES NOMINAL IN
STRAND AWG SIZE PER CONDUCTOR30 ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR10 ALL CONDUCTORS
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
CONDUCTOR ARRANGEMENT AND QUANTITY25 SINGLES
SURFACE TREATMENTALUMINUM FIRST POSITION SHIELD FOIL CABLE
CROSS-SECTIONAL SHAPE STYLEROUND
SURFACE TREATMENTTIN CORE CONDUCTOR ALL CONDUCTORS
COLOR CODING DOCUMENT5160/25-92194 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
39-98Upgraded Successor
successor cross-reference
successor
MR36W300DCMAUpgraded Successor
successor cross-reference
successor
MILM6Upgraded Successor
successor cross-reference
successor
9302Upgraded Successor
successor cross-reference
successor
BIT3984Upgraded Successor
successor cross-reference
successor
FFS85Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 640-25?
640-25 is a HOSE ASSEMBLY,METALLIC,FIRE FIGH manufactured by Kensington. It is classified as a MRO (MRO_GENERAL).
What parts can replace 640-25?
There are 27 known substitutes for 640-25: 39-98, MR36W300DCMA, MILM6 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 640-25?
640-25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-164-6454. This indicates validated use in U.S. government and defense supply chains.
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