The Gage Block Set, cataloged under National Stock Number 5210-01-225-5429, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is Mahr Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5210-01-225-5429 |
| Primary Part Number | E1-81 GRADE AA |
| Item Name | Gage Block Set |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | Mahr Inc |
| Status | ACTIVE |
| Component Quantity | 81 |
| Document Type | FEDERAL SPECIFICATION |
| Document Identification | FED SPEC SET NO. 1-81 |
| Supplementary Features | CERTIFICATE OF CALIRATION PROVIDED,SWEDEN MFG SOLD BY FSCM 21938 |
| Component Document Origin | GOVERNMENT |
| Specification/standard Data | 81348-GGG-G-15 GOVERNMENT SPECIFICATION |
| Departure From Cited Document | GGG-G-15,PARAGRAPH 3.5.1.1,GAGE BLOCK SET NO. 1-81-GAGE BLOCKS |
| Nondefinitive Spec/std Data | 1 STYLE AND 1 GRADE AND 1 CLASS |
| Container Type | CASE |
| Document Source | 80244 |
| Functional Description | INCH SYSTEM WORKSHOP EQUIP. |
| Usage Design | LABORATORY REFERENCE STANDARDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| E1-81 GRADE AA PRIMARY | Mahr Inc (USA) |
| Reference | Meaning |
|---|---|
| SET 1-81 GRADE 1 | 5/2 Secondary reference U.S. Government activity |
| GGG-G-15 STYLE 1GRADE 1 CLASS 1 | 5/1 Secondary reference U.S. Government activity |
| F1 | 5/1 Secondary reference Mahr Inc |
| GGG-G-15 | 4/1 Identification reference U.S. Government activity |
NSN 5210-01-225-5429 is a Gage Block Set, manufactured by Mahr Inc, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-01-225-5429 has 1 manufacturer part number on file: E1-81 GRADE AA (Mahr Inc).
Key specifications for E1-81 GRADE AA: Component Quantity: 81; Document Type: FEDERAL SPECIFICATION; Document Identification: FED SPEC SET NO. 1-81; Supplementary Features: CERTIFICATE OF CALIRATION PROVIDED,SWEDEN MFG SOLD BY FSCM 21938. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.