PartsTable TECHNICAL DATA SHEET
NSN 6635-01-644-0998Government record, cited

Tester, Material Strength6635-01-644-0998

NSN 6635-01-644-0998 · NIIN 016440998 · Part number FTFT
Alpha Technologies Services Llc · FSC 6635 — Physical Properties Testing and Inspection · FSG 66 — Instruments and Laboratory Equipment · CAGE 07WY6
Government record, cited
NSN 6635-01-644-0998 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-644-0998. Manufacturer of record part number: FTFT.
Also searched as  6635-01-644-0998 · 6635016440998 · NIIN 016440998 · 01-644-0998 · FSC 6635 Physical Properties Testing and Inspection · CAGE 07WY6 · FTFT
Nearby stock numbers  ·
Features
  • Tester,material Strength — FSC 6635
  • Scale Quantity: 24
  • Functional Description: DETERMINES THE FATIGUE LIFE OF ELASTOMERIC COMPOUNDS IN TENSION. DEVICE RECORDS NUMBER OF CYCLES APPLIED TO EACH SPECIMAN BEFORE SAMPLE IS DESTROYED BY FATIGUE
  • 1 manufacturer part number on file
  • Manufacturer of record: Alpha Technologies Services Llc
Identification
  • NSN: 6635-01-644-0998
  • NIIN: 016440998
  • FSC: 6635 — Physical Properties Testing and Inspection
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: FTFT
  • Manufacturer: Alpha Technologies Services Llc
General Description

The Tester,material Strength, cataloged under National Stock Number 6635-01-644-0998, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Alpha Technologies Services Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6635-01-644-0998
Primary Part NumberFTFT
Item NameTester,material Strength
FSC / FSG6635 / 66 — Physical Properties Testing and Inspection
ManufacturerAlpha Technologies Services Llc
StatusACTIVE
Scale Quantity24
Functional DescriptionDETERMINES THE FATIGUE LIFE OF ELASTOMERIC COMPOUNDS IN TENSION. DEVICE RECORDS NUMBER OF CYCLES APPLIED TO EACH SPECIMAN BEFORE SAMPLE IS DESTROYED BY FATIGUE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
FTFT PRIMARY Alpha Technologies Services Llc (USA)
No interchangeability data on file.
Other items in FSC 6635 — Physical Properties Testing and Inspection
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6635-00-000-0133
X-RAY APPARATUS,RADIOGRAPHIC,IND
6635-00-001-1523
FILM,RADIOGRAPHIC
6635-00-001-2317
6635-00-001-2317 · Item name not on file
6635-00-001-2318
6635-00-001-2318 · Item name not on file
6635-00-003-0281
TESTER,TORQUE WRENCH
6635-00-003-0282
CALIBRATOR,TORQUE
6635-00-003-0284
CALIBRATOR,TORQUE
6635-00-003-1193
6635-00-003-1193 · Item name not on file

Frequently Asked Questions

What is NSN 6635-01-644-0998?

NSN 6635-01-644-0998 is a Tester,material Strength, manufactured by Alpha Technologies Services Llc, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.

What part numbers are listed for NSN 6635-01-644-0998?

NSN 6635-01-644-0998 has 1 manufacturer part number on file: FTFT (Alpha Technologies Services Llc).

What are the specifications of FTFT?

Key specifications for FTFT: Scale Quantity: 24; Special Features: MEETS ASTM D4482;COMPUTER CONNECTED WITH A USB PORT;CONTROL AND COLLECT DATA FROM UP TO THREE UNITS WITH ONE COMPUTER;FAILURE DETERMINED BY PHOTO SENSOR SWITCHES;FREQUENCY 100 CPM;EXTENSION RATIO 1.6 TO 2.4; TEMPERATURE RT;WIDTH 72.4 CM;HEIGHT 63.5 CM;DEPTH 67.3 CM;ELECTRICAL 110 VAC/60 HZ OR 220 VAC/50 HZ 20-AMP;OPTIONS SAMPLE MOLD;DUMBBELL DIE CUTTER;EXTENSION CYCLING FATIGUE;GEOMETRIC MEAN FATIGUE LIFE;FATIGUE LIFE AS A FUNCTION OF EXTENSION RATIO AND/OR STRAIN ENERGY VAC; Functional Description: DETERMINES THE FATIGUE LIFE OF ELASTOMERIC COMPOUNDS IN TENSION. DEVICE RECORDS NUMBER OF CYCLES APPLIED TO EACH SPECIMAN BEFORE SAMPLE IS DESTROYED BY FATIGUE; Part Name Assigned by Controlling Agency: FATIGUE TO FAILURE TESTER. 2 specifications are documented in the U.S. Government catalog.

Is NSN 6635-01-644-0998 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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