The Tester,spring Resiliency, cataloged under National Stock Number 6635-00-498-7910, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is American Telephone and Telegraph Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6635-00-498-7910 |
| Primary Part Number | 138-55 |
| Item Name | Tester,spring Resiliency |
| FSC / FSG | 6635 / 66 — No Item Name Available |
| Manufacturer | American Telephone and Telegraph Co |
| Status | CANCELLED |
| Spring Travel Gage | NOT INCLUDED |
| Torque Indicating Wrench Usage Feature | NOT INCLUDED |
| Unit Type | WEIGHING SCALE |
| Scale Range | +0.0 TO 8.0 OUNCES OZ |
| Load Receiver Type | HOOK AND PUSH ROD |
| Mounting Method | PORTABLE |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS AND A STYLE AND 8 OZ CAPACITY OZ |
| Measurement Unit | OUNCE |
| Spring Type for Which Designed | COMPRESSION AND TENSION |
| Operation Method | MANUAL |
| Scale Smallest Increment Graduation | 1/2 OZ SMALLEST INCREMENT OZ |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 138-55 | American Telephone and Telegraph Co (USA) |
| AA59400-1A3 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| A-A-59400A | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MILT43560 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 7890049-21 | Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA) |
| 110443 | American Telephone and Telegraph Co (USA) |
| 138-55 | Lucent Technologies Inc Dba Federal Marketing Group (USA) |
| 521104430 | Telemechanics Inc (USA) |
| A-A-59309A | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 6635-00-498-7910 is a Tester,spring Resiliency, manufactured by American Telephone and Telegraph Co, classified under FSC 6635 (No Item Name Available). Status: cancelled.
NSN 6635-00-498-7910 has 9 cross-referenced part numbers: 138-55 (American Telephone and Telegraph Co), AA59400-1A3 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59400A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MILT43560 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 7890049-21 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan) and 4 more.
There are 12 known substitutes for 6635-00-498-7910: 5950-00-004-7595, 5315-00-058-6081, 3110-00-110-3908 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 138-55: Spring Travel Gage: NOT INCLUDED; Torque Indicating Wrench Usage Feature: NOT INCLUDED; Unit Type: WEIGHING SCALE; Scale Range: +0.0 TO 8.0 OUNCES OZ. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 6635-00-498-7910 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.