PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC4551Crane,floor,portable

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 3950-00-810-7691 · FSC 3950 · No Item Name Available
Verified by PartsTable
NSN 3950-00-810-7691 — this item is cataloged by the U.S. Government under National Stock Number 3950-00-810-7691. Primary manufacturer part number: MILC4551.
Features
  • Crane,floor,portable — FSC 3950
  • Load Position Locking Method: CHECK VALVE
  • Nondefinitive Spec/std Data: C GROUP AND 2 TYPE AND 2 CLASS AND A STYLE
  • Bed Feature: NOT INCLUDED
  • Boom Type: NONREVOLVING
  • Lift Mechanism Type: HYDRAULIC RAM
  • Retracted Length: 2.917 FEET NOMINAL FT
  • Maximum Lift Height: 8.833 FEET FT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crane,floor,portable, cataloged under National Stock Number 3950-00-810-7691, is classified within Federal Supply Class 3950 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3950-00-810-7691
Primary Part NumberMILC4551
Item NameCrane,floor,portable
FSC / FSG3950 / 39 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Load Position Locking MethodCHECK VALVE
Nondefinitive Spec/std DataC GROUP AND 2 TYPE AND 2 CLASS AND A STYLE
Bed FeatureNOT INCLUDED
Boom TypeNONREVOLVING
Lift Mechanism TypeHYDRAULIC RAM
Retracted Length2.917 FEET NOMINAL FT
Maximum Lift Height8.833 FEET FT
Operation MethodMANUAL
Boom DesignTELESCOPING
Design TypeBOOM
Extended Length3.917 FEET NOMINAL FT
Maximum Lifting Capacity2000.0 POUNDS LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3950-00-271-1854 INTERCHANGEABLE
Crane,floor,portable
3950-00-272-9316 INTERCHANGEABLE
Crane,floor,portable
3950-00-329-3435 INTERCHANGEABLE
Crane,floor,portable
3950-00-391-1717 INTERCHANGEABLE
Crane,floor,portable
3950-00-618-4942 INTERCHANGEABLE
Crane,floor,portable
3950-00-641-6201 INTERCHANGEABLE
Crane,floor,portable
4320-00-679-9976173106AS INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Brinkley Technology Group Llc Dba Hercules Manufacturing
3950-00-702-2221 INTERCHANGEABLE
Crane,floor,portable
3950-00-888-2446 INTERCHANGEABLE
Crane,floor,portable
5962-01-113-2787349-334-041 INTERCHANGEABLE
Microcircuit,linear
L3harris Interstate Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
MILC4551 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AA50797-C-H-2-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-50797 GPC TYII CL2 STA Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-50797 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
5MODEL1809 Welding Engineers Inc (USA)
51809 Welding Engineers Inc (USA)
Related Parts
3950-00-271-1854INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-272-9316INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-329-3435INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-391-1717INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-618-4942INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-641-6201INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
4320-00-679-9976INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
173106AS
3950-00-702-2221INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
3950-00-888-2446INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
5962-01-113-2787INTERCHANGEABLE
MICROCIRCUIT,LINEAR
349-334-041
4720-01-139-1791INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3950-01-145-9718INTERCHANGEABLE
CRANE,FLOOR,PORTABLE

Frequently Asked Questions

What is NSN 3950-00-810-7691?

NSN 3950-00-810-7691 is a Crane,floor,portable, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3950-00-810-7691?

NSN 3950-00-810-7691 has 6 cross-referenced part numbers: MILC4551 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AA50797-C-H-2-A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-50797 GPC TYII CL2 STA (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-50797 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 5MODEL1809 (Welding Engineers Inc) and 1 more.

What NSN replaces 3950-00-810-7691?

There are 12 known substitutes for 3950-00-810-7691: 3950-00-271-1854, 3950-00-272-9316, 3950-00-329-3435 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC4551?

Key specifications for MILC4551: Special Features: STRADDLE CLEARANCE ADJUSTABLE TO 45 IN.,ROLL-UNDER CLEARANCE MIN 9 IN,STEEL WHEELS,FLOOR BRAKE,SWIVEL TYPE SAFETY LATCH HOOK,1200 LB MAX LIFTING CAPACITY W/BOOM EXTENDED TO 3 FT 11 IN. LBS; Load Position Locking Method: CHECK VALVE; Nondefinitive Spec/std Data: C GROUP AND 2 TYPE AND 2 CLASS AND A STYLE; Bed Feature: NOT INCLUDED. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3950-00-810-7691 still in active supply?

NSN 3950-00-810-7691 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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