The Block,tackle, cataloged under National Stock Number 3940-00-199-7675, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-00-199-7675 |
| Item Name | Block,tackle |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| Attachment Style | JAW AND EYE SWIVEL |
| Becket Type | THIMBLE |
| Sheave Bearing Lubrication Method | SELF-LUBRICATED |
| Maximum Tackle Diameter Accommodated | 0.500 INCHES IN |
| Load Rating | 7000.0 POUNDS MAXIMUM LBS |
| Tackle Locking Device | NOT INCLUDED |
| Sheave Outside Diameter | 8.000 INCHES NOMINAL IN |
| Becket Quantity | 1 |
| Tackle Accommodated Type | WIRE ROPE |
| Block Type | REGULAR |
| Center Pin Diameter | 0.875 INCHES NOMINAL IN |
| Style Designator | DIAMOND PATTERN |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 1040 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1040 ASSN STD SINGLE MATERIAL RESPONSE CENTER PIN |
| Material Document and Classification | QQ-S-633-CANCELED FED SPEC SINGLE MATERIAL RESPONSE AND QQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE SHELL |
| Material Document and Classification | QQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE SHEAVE |
| Nondefinitive Spec/std Data | II TYPE AND 2 CLASS |
| Bearing Type | PLAIN |
| Surface Treatment | ZINC OVERALL |
| Sheave Quantity | 2 |
| Material | STEEL SHEAVE |
| Material | COPPER ALLOY BEARING |
| Material | IRON AND STEEL AND STEEL SHELL |
| Material | STEEL COMP 1040 CENTER PIN |
| Antitoppling Device | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-B-24141 | 5/9 Secondary reference U.S. Government activity |
| 4002H | 5/9 Secondary reference Brewer-Titchner Corp Sub Joslyn Mfg and Supply Co |
| A-A-59985 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
NSN 3940-00-199-7675 is a Block,tackle, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5325-00-282-7463, 3940-00-461-1539, 3940-01-373-2733. Verify interchangeability with system specifications before substitution.
Key specifications for 3940-00-199-7675: Attachment Style: JAW AND EYE SWIVEL; Becket Type: THIMBLE; Sheave Bearing Lubrication Method: SELF-LUBRICATED; Maximum Tackle Diameter Accommodated: 0.500 INCHES IN. 24 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.