PartsTable TECHNICAL DATA SHEET
NSN 3940-01-558-3495Government record, cited

Block, Double3940-01-558-3495

NSN 3940-01-558-3495 · NIIN 015583495 · Part number 2602
Harken Inc · FSC 3940 — Blocks, Tackle, Rigging, and Slings · FSG 39 — Materials Handling Equipment · CAGE 0LEM6
Government record, cited
NSN 3940-01-558-3495 — this item is cataloged by the U.S. Government under National Stock Number 3940-01-558-3495. Manufacturer of record part number: 2602.
Also searched as  3940-01-558-3495 · 3940015583495 · NIIN 015583495 · 01-558-3495 · FSC 3940 Blocks, Tackle, Rigging, and Slings · CAGE 0LEM6 · 2602
Nearby stock numbers  ·
Features
  • Block,double — FSC 3940
  • 1 manufacturer part number on file
  • Manufacturer of record: Harken Inc
Identification
  • NSN: 3940-01-558-3495
  • NIIN: 015583495
  • FSC: 3940 — Blocks, Tackle, Rigging, and Slings
  • FSG: 39 — Materials Handling Equipment
  • Primary part number: 2602
  • Manufacturer: Harken Inc
General Description

The Block,double, cataloged under National Stock Number 3940-01-558-3495, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Harken Inc. 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
NSN3940-01-558-3495
Primary Part Number2602
Item NameBlock,double
FSC / FSG3940 / 39 — Blocks, Tackle, Rigging, and Slings
ManufacturerHarken Inc
StatusACTIVE
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
2602 PRIMARY Harken Inc (USA)
No interchangeability data on file.
Other items in FSC 3940 — Blocks, Tackle, Rigging, and Slings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3940-00-000-0169
3940-00-000-0169 · Item name not on file
3940-00-003-0706
BLOCK-WD12IN SNATCH
3940-00-004-3568
3940-00-004-3568 · Item name not on file
3940-00-004-9175
SLING,PALLET
3940-00-005-1366
3940-00-005-1366 · Item name not on file
3940-00-005-1367
3940-00-005-1367 · Item name not on file
3940-00-006-3256
3940-00-006-3256 · Item name not on file
3940-00-007-2801
ADAPTER,HOISTING

Frequently Asked Questions

What is NSN 3940-01-558-3495?

NSN 3940-01-558-3495 is a Block,double, manufactured by Harken Inc, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.

What part numbers are listed for NSN 3940-01-558-3495?

NSN 3940-01-558-3495 has 1 manufacturer part number on file: 2602 (Harken Inc).

What are the specifications of 2602?

Key specifications for 2602: Overall Length: 4.750 INCHES NOMINAL IN; Special Features: WEIGHT WITH SHACKLE:6.3 OZ; SHEAVE DIA:2.25 IN.; DESCRIPTION:DOUBLE/SWIVEL; MAX. LINE DIA:0.4375 IN.; SWL:1584 LBS; BREAKING STRENGTH:3300 LBS LBS; Part Name Assigned by Controlling Agency: BLOCK-57MM CARBO DOUBLE MM; End Item Identification: DAVIT PORTABLE LONG RANGE INSERTION CRAFT GEN IV. 0 specifications are documented in the U.S. Government catalog.

Is NSN 3940-01-558-3495 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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