PartsTable TECHNICAL DATA SHEET
NSN 3940-00-807-7527Government record, cited

Block Ay Tackle3940-00-807-7527

NSN 3940-00-807-7527 · NIIN 008077527 · Part number 20319
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. · FSC 3940 — Blocks, Tackle, Rigging, and Slings · FSG 39 — Materials Handling Equipment · CAGE 13841
Government record, cited
NSN 3940-00-807-7527 — this item is cataloged by the U.S. Government under National Stock Number 3940-00-807-7527. Manufacturer of record part number: 20319.
Also searched as  3940-00-807-7527 · 3940008077527 · NIIN 008077527 · 00-807-7527 · FSC 3940 Blocks, Tackle, Rigging, and Slings · CAGE 13841 · 20319
Nearby stock numbers  ·
Features
  • Block Ay Tackle — FSC 3940
  • 1 manufacturer part number on file
  • Manufacturer of record: Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
Identification
  • NSN: 3940-00-807-7527
  • NIIN: 008077527
  • FSC: 3940 — Blocks, Tackle, Rigging, and Slings
  • FSG: 39 — Materials Handling Equipment
  • Primary part number: 20319
  • Manufacturer: Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
General Description

The Block Ay Tackle, cataloged under National Stock Number 3940-00-807-7527, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts
Item NameBlock Ay Tackle
FSC / FSG3940 — Blocks, Tackle, Rigging, and Slings (FSG 39)
ManufacturersTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (CAGE 13841)
Technical Specifications
ParameterValue
NSN3940-00-807-7527
Primary Part Number20319
Item NameBlock Ay Tackle
FSC / FSG3940 / 39 — Blocks, Tackle, Rigging, and Slings
ManufacturerTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
⇄ Related Items 8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1377-00-863-9387 POSSIBLE MATCH
CARTRIDGE,ENGINE STARTER
Possible match (shared part number)
3110-00-978-1810C322456 POSSIBLE MATCH
BEARING,BALL,ANNULAR
Possible match (shared part number)Raytheon Company Dba Raytheon Co
5915-01-072-2247 POSSIBLE MATCH
FILTER,RADIO FREQUENCY INTERFERE
Possible match (shared part number)
4820-01-177-467420319-17-91-SS POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4520-01-277-580620319 POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)G.s. Blodgett, Llc Div Blodgett
5340-01-556-118020319 POSSIBLE MATCH
COVER,ACCESS
Possible match (shared part number)L3harris Technologies, Inc Div Space & Airborne Systems
5950-01-560-4693401-7618807 ITEM 62 POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)Naval Sea Systems Command
4730-01-562-202920319 POSSIBLE MATCH
STRAINER,SEDIMENT
Possible match (shared part number)Crispaire Corp Dba Marvair Co
Cross-Reference Index
Part NumberManufacturer
20319 PRIMARY Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
1377-00-863-9387POSSIBLE MATCH
CARTRIDGE,ENGINE STARTER
3110-00-978-1810POSSIBLE MATCH
BEARING,BALL,ANNULAR
C322456
5915-01-072-2247POSSIBLE MATCH
FILTER,RADIO FREQUENCY INTERFERE
4820-01-177-4674POSSIBLE MATCH
VALVE,SAFETY RELIEF
20319-17-91-SS
4520-01-277-5806POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
20319
5340-01-556-1180POSSIBLE MATCH
COVER,ACCESS
20319
5950-01-560-4693POSSIBLE MATCH
TRANSFORMER,POWER
401-7618807 ITEM 62
4730-01-562-2029POSSIBLE MATCH
STRAINER,SEDIMENT
20319

Frequently Asked Questions

What is NSN 3940-00-807-7527?

NSN 3940-00-807-7527 is a Block Ay Tackle, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.

What part numbers are listed for NSN 3940-00-807-7527?

NSN 3940-00-807-7527 has 1 manufacturer part number on file: 20319 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 3940-00-807-7527?

8 possible matches (shared part number, not a government interchangeability claim): 1377-00-863-9387, 3110-00-978-1810, 5915-01-072-2247. Verify interchangeability with system specifications before substitution.

Is NSN 3940-00-807-7527 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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